LSS Manual Técnico Aespire 7100
LSS Manual Técnico Aespire 7100
LSS Manual Técnico Aespire 7100
Datex-Ohmeda products have unit serial numbers with coded logic which indicates a
product group code, the year of manufacture, and a sequential unit number for
identification. The serial number can be in one of two formats.
08/07 M1110140
Technical Reference Manual
This document is not to be reproduced in any manner, nor are the contents to be
disclosed to anyone, without the express authorization of the product service
department, Datex-Ohmeda, Ohmeda Drive, PO Box 7550, Madison, Wisconsin,
53707.
M1110140 08/07 i
Aespire 7100
Important
The information contained in this Technical Reference manual pertains only to those
models of products which are marketed by Datex-Ohmeda as of the effective date of
this manual or the latest revision thereof. This Technical Reference manual was
prepared for exclusive use by Datex-Ohmeda service personnel in light of their training
and experience as well as the availability to them of parts, proper tools and test
equipment. Consequently, Datex-Ohmeda provides this Technical Reference manual to
its customers purely as a business convenience and for the customer's general
information only without warranty of the results with respect to any application of such
information. Furthermore, because of the wide variety of circumstances under which
maintenance and repair activities may be performed and the unique nature of each
individual's own experience, capacity, and qualifications, the fact that customer has
received such information from Datex-Ohmeda does not imply in anyway that Datex-
Ohmeda deems said individual to be qualified to perform any such maintenance or
repair service. Moreover, it should not be assumed that every acceptable test and
safety procedure or method, precaution, tool, equipment or device is referred to within,
or that abnormal or unusual circumstances, may not warrant or suggest different or
additional procedures or requirements.
This manual is subject to periodic review, update and revision. Customers are
cautioned to obtain and consult the latest revision before undertaking any service of
the equipment. Comments and suggestions on this manual are invited from our
customers. Send your comments and suggestions to the Manager of Technical
Communications, Datex-Ohmeda, Ohmeda Drive, PO Box 7550, Madison, Wisconsin
53707.
w CAUTION Servicing of this product in accordance with this Technical Reference manual
should never be undertaken in the absence of proper tools, test equipment and
the most recent revision to this service manual which is clearly and thoroughly
understood.
Technical Competence
The procedures described in this Technical Reference manual should be performed by
trained and authorized personnel only. Maintenance should only be undertaken by
competent individuals who have a general knowledge of and experience with devices of
this nature. No repairs should ever be undertaken or attempted by anyone not having
such qualifications.
Datex-Ohmeda strongly recommends using only genuine replacement parts,
manufactured or sold by Datex-Ohmeda for all repair parts replacements.
Read completely through each step in every procedure before starting the procedure;
any exceptions may result in a failure to properly and safely complete the attempted
procedure.
ii 08/07 M1110140
Table of Contents
Important . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ii
Technical Competence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ii
1 Introduction
1.1 What this manual includes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.2 Standard service procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.2.1 Users Reference Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.2.2 Software versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.2.3 Ventilator tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
1.3.1 Aespire 100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
1.3.2 S/5 ProTIVA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
1.4 Configuration options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.4.1 Standard configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.4.2 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.5 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.6 Symbols used in the manual or on the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
2 Theory of Operation
2.1 Theory overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.2 Gas flow through the anesthesia machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.2.2 Physical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
2.2.3 Suction regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
2.2.4 System switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
2.2.5 Flow control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
2.3 Flow through the breathing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
2.3.1 Overview of flow paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
2.3.2 Manual ventilation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
2.3.3 Mechanical ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
2.3.4 Fresh gas and O2 flush flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
2.4 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
2.5 7100 ventilator features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
2.5.1 Safety features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
2.6 7100 ventilator components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
2.6.1 Control Module (color display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
2.6.2 Control Module (non-color display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
2.6.3 Monitoring interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
2.6.4 Serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
2.6.5 The Pneumatic Vent Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
2.7 Electronic and electrical components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
2.7.1 The Aespire 7100 ventilator functional blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
2.7.2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32
2.7.3 Sealed Lead Acid Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32
2.7.4 Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
2.7.5 Monitoring interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37
2.7.6 Serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
2.7.7 Vent Engine Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39
2.8 Ventilator mechanical subsystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-40
2.8.1 Drive gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-40
2.8.2 Pressure Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41
2.8.3 Inspiratory flow control valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41
2.8.4 Exhalation (PEEP) Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-42
2.8.5 Reservoir and bleed resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43
2.8.6 Bellows Pressure Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44
2.8.7 Mechanical Overpressure Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44
2.8.8 Free Breathing Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45
2.8.9 Breathing Circuit Flow Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46
iv 08/07 M1110140
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3 Checkout Procedure
3.1 Ventilator post-service checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
3.2 Inspect the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
3.3 Pipeline and cylinder tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
3.4 Flow control tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
3.4.1 With O2 monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
3.4.2 Without O2 monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3.5 Pressure relief tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
3.6 O2 supply alarm test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
3.7 Flush Flow Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
3.8 Vaporizer back pressure test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3.9 Low-pressure leak test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3.9.1 Negative low-pressure leak test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3.9.2 ISO or BSI standard low-pressure leak test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3.10 Alarm tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
3.11 Breathing system tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
3.12 Auxiliary O2 flowmeter tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
3.13 Integrated Suction Regulator tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
3.14 Power failure test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
3.15 Electrical safety tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
M1110140 08/07 v
Aespire 7100
5 Calibration
5.1 Primary Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
5.1.1 Test setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
5.1.2 Testing Primary Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
5.1.3 Adjusting Primary Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
5.2 Secondary Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
5.2.1 Testing/Adjusting Secondary Regulators or Balance Regulators . . . . . . . . . . . . . .5-7
5.3 Flowmeter Needle Valve Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
5.3.1 O2 Needle Valve Calibration (Minimum Flow) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5.3.2 N2O Needle Valve Calibration (Minimum Flow). . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
5.3.3 Air Needle Valve Calibration (Minimum Flow) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
5.4 Link system calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
5.5 O2 Flush Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
5.6 Airway pressure gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
5.6.1 Zero the pressure gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
5.6.2 Checking the pressure gauge accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
vi 08/07 M1110140
Table of Contents
7 Troubleshooting
7.1 General Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
7.2 Breathing System Leak Test Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4
7.2.1 Breathing system leak test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
7.2.2 Breathing System Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
7.2.3 Leak Isolation Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12
7.3 Troubleshooting guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28
7.4 Alarm and Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
7.5 Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-41
7.5.1 Ventilator assessment process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-41
7.5.2 No display troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-42
7.5.3 Inaccurate volume ventilation troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43
7.5.4 VMB board evaluation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
7.5.5 No ventilation troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-45
7.5.6 High intrinsic PEEP troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-46
8 Software Installation
8.1 Before installing new software or replacing the Control Board . . . . . . . . . . . . . . . . . . . . . .8-2
8.1.1 Key/BID label (Key Code) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3
8.2 After replacing the Control Board or the Control Module . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4
8.2.1 Calibration and Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5
8.3 Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-6
9 Repair Procedures
9.1 How to bleed gas pressure from the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
9.2 How to remove the rear panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
9.2.1 To remove the rear upper panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
9.2.2 To remove the lower access panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
9.3 How to remove the tabletop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-5
9.4 Servicing the pipeline inlet manifold components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6
9.4.1 Replace pipeline inlet filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6
9.4.2 Replace pipeline inlet check valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6
9.4.3 Replace the inlet manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-7
9.5 Service the cylinder supply modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-8
9.5.1 Tightening procedure for high-pressure tube fittings . . . . . . . . . . . . . . . . . . . . . . . .9-8
9.5.2 Replace primary regulator module (complete replacement) . . . . . . . . . . . . . . . . .9-8
9.5.3 Replace cylinder inlet filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-9
9.5.4 Replace cylinder check valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-9
9.5.5 Replace 3rd-gas cylinder supply module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10
9.6 Replace system switch assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
9.7 Service the flowmeter module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13
9.7.1 Remove front flowmeter panel shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13
9.7.2 Remove flowtubes for cleaning or replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13
9.7.3 Remove complete flowmeter head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-15
9.7.4 Replace flowmeter modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-16
9.7.5 Replace flowmeter frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-20
9.7.6 Replace O2 supply switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-21
9.7.7 Checkout procedure for O2 supply switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-21
9.7.8 Replace secondary regulator manifold or balance regulator manifold . . . . . . . 9-22
9.7.9 Replace O2 or N2O needle valves (on machines with N2O) . . . . . . . . . . . . . . . . . 9-23
9.7.10 Replace an Air needle valve on all machines or an O2 needle valve
on machines without N2O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-25
9.8 Service vaporizer manifold parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-26
9.8.1 Repair manifold port valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-26
9.8.2 Checkout procedure for manifold port valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-27
9.8.3 Replace vaporizer manifold check valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-28
9.8.4 Replace vaporizer pressure relief valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-30
9.8.5 Replace vaporizer manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-31
9.9 Replace ACGO selector switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-32
9.10 Clean or replace ACGO port flapper valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-34
9.11 Reconfigure sample gas return line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-35
9.12 Replace the APL valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-36
M1110140 08/07 ix
Aespire 7100
10 Illustrated Parts
10.1 Service tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3
10.1.1 Secondary regulator pilot pressure tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3
10.1.2 Test Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4
10.1.3 Test Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
10.2 External components - front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6
10.3 External components - front view references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7
10.4 External Components - rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8
10.5 Control module mounting for a ProTIVA machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9
10.6 Aespire 100 - exclusive components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10
10.6.1 AC Inlet (Aespire 100) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12
10.6.2 Display mount (Aespire 100) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-13
10.7 Front panel, gauges and system switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-14
10.8 Rear panel components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-15
10.9 Tabletop components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-16
10.10 Right-side Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-17
10.11 External components - lower assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-18
10.12 AC Power cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-19
10.13 AC Inlet/Outlet Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20
10.14 Pipeline inlet fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-22
10.15 Cylinder Gas Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-23
10.15.1 Cylinder inlet fittings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-24
10.16 Vaporizer manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-25
10.17 Flowmeter components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-26
10.17.1 Flowtube parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-28
10.17.2 Secondary regulator components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30
10.18 ABS to machine Interface Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-32
10.18.1 Flush Regulator, Flush Valve, and ACGO Selector Switch . . . . . . . . . . . . . . . 10-33
10.19 Auxiliary O2 Flowmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-34
10.20 Breathing system interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-35
x 08/07 M1110140
Table of Contents
M1110140 08/07 xi
Notes
In this section This section provides a general overview of the Aespire 7100 line of anesthesia
machines.
1.1 What this manual includes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.2 Standard service procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.2.1 Users Reference Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.2.2 Software versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.2.3 Ventilator tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
1.3.1 Aespire 100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
1.3.2 S/5 ProTIVA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
1.4 Configuration options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.4.1 Standard configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.4.2 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.5 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.6 Symbols used in the manual or on the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
S/5 ProTIVA The ProTIVA machine is configured with standard Aespire machine
components, with the exception of the vaporizer manifold and the Ventilator/
Monitoring Display (7100 Control Module) mounting solution
(refer to Section 10.5).
B Braun equipment is not covered in this manual. Refer to B Braun service
documentation.
Other equipment Other equipment may be attached to the system on the display mount, the
top shelf, or on the side dovetail rails. Consult separate documentation
relative to these items for details.
1.2.1 Users Reference Some sections of this manual refer you to the Users Reference Manual for the
Manuals Aespire machine. To expedite repairs, you must have, and be familiar with, the
Users Reference Manuals for this product.
Refer to the Aespire Users Reference Manual if you need further information
about the operation of the system.
1.2.2 Software versions The revision level is displayed on the ventilator start-up menu. This manual
includes test and calibration procedures for Revision 1.X and 2.X software.
1.2.3 Ventilator tests Service calibration functions let Datex-Ohmeda trained users and
Datex-Ohmeda service personnel perform ventilator setup functions, tests,
calibration and measurements from the front panel display.
Normal operational tests, calibration, and troubleshooting can be performed
on your 7100 ventilator without removing components from the system. Repair
may require removing the ventilator components from the anesthesia
machine.
w WARNING After the ventilator has been serviced, you must perform Post-Service
Checkout to verify the entire anesthesia system is properly functioning
before the system can be returned to clinical use.
1.3 Overview
The Aespire 7100 machine is a compact, integrated and intuitive anesthesia
delivery system. The ventilator portion provides mechanical ventilation to a
patient during surgery as well as monitoring and displaying various patient
parameters.
The system uses a microprocessor-controlled ventilator with internal
monitors, electronic PEEP, Volume Mode, and other optional features. A serial
interface permits communication to cardiovascular and respiratory gas
monitoring.
Note Configurations available for this product depend on local market and
standards requirements. Illustrations in this manual may not represent all
configurations of the product.
The Aespire machine is not suitable for use in an MRI environment.
1.3.1 Aespire 100 The Aespire 100 machine is based on the standard Aespire 7100 machine
with the following exceptions to available features or options:
does not include the RS232 Serial Interface
does not include the Bi-level LED light strip
the 2 Vap manifold is standard (does not support 1 Vap manifold)
not available with AC power outlets (area used by AC Inlet)
uses 4-inch casters instead of 5-inch casters
1.3.2 S/5 ProTIVA The S/5 ProTIVA is a special adaptation of the Aespire 7100 machine (does
not include vaporizer manifold) for use with B Braun intravenous drug delivery
components.
1.5 Components
The following figures show the front and rear views of the machine.
There are some differences between models.
Figure 1-1 Aespire machine (front view - left side)
Figure 1-2 Aespire machine (front view - right side)
Figure 1-3 Aespire machine (rear view)
Figure 1-4 S/5 ProTIVA with a typical B Braun fluid manager (fm) system
18
17
16
15
1
14
13 2
AB.74.054
12
11
10
8 7 6 5 4 3
2 4
5
6
1 7
10
11
AB.74.053
9
7 5 6
1
2
AB.74.004
5
6
7
AB.97.009
5
3
2 4
1
AB.97.002
1. Ventilator/Monitoring display
2. Syringe pumps (3)
3. fm controller
4. fm computer
5. fm segment
Figure 1-4 S/5 ProTIVA with a typical B Braun fluid manager (fm) system
m On (power)
A Alarm silence
l Standby
j Type B equipment
Direct current
wW Attention, refer to product instructions,
IEC 60601-1
p Alternating current
O Dangerous voltage
y Earth ground
Electrical output
Y Equipotential
Pneumatic output
Pipeline
Cylinder
z Lock
Isolation transformer
U Close drain
Risk of Explosion.
Not autoclavable
r Mechanical ventilation
134C Autoclavable
R Bag position/ manual ventilation
q Inspiratory flow
Q Expiratory flow
Authorized representative in the European Systems with this mark agree with the
Community European Council Directive (93/42/EEC)
for Medical Devices when they are used
as specified in their Users Reference
Date of Manufactur manuals. The xxxx is the certification
number of the Notified Body used by
Datex-Ohmedas Quality Systems.
Gas supplies Gas comes into the system through a pipeline (2) or cylinder (4) connection. All
connections have indexed fittings, filters, and check valves (one-way valves). Gauges
show the pipeline (1) and cylinder (3) pressures.
A primary regulator (5) decreases the cylinder pressures to approximately pipeline
levels. A pressure relief valve (6) helps protect the system from high pressures.
To help prevent problems with the gas supplies:
Install yoke plugs on all empty cylinder connections.
When a pipeline supply is adequate, keep the cylinder valve closed.
O2 flow Pipeline or regulated cylinder pressure supplies O2 directly to the ventilator (7a for O2
drive gas) and the venturi suction (21a for O2 drive gas) supply connection. An
additional regulator (13) decreases the pressure for the flush valve (14a) and the
auxiliary flowmeter (25).
The flush valve supplies high flows of O2 to the fresh gas outlet (26 or 27) when you
push the flush button. The flush pressure switch (14b) monitors activation of the flush
valve.
When the system switch (8) is On, O2 flows to the rest of the system.
A secondary regulator (10) supplies a constant O2 pressure to the O2 flow control valve
(11). There is a minimum flow of 25 to 75 mL/min (for dual-tube flowmeters) or 175 to
225 mL/min (for single-tube flowmeters) through the O 2 flowmeter (12).
The O2 pressure switch (9) monitors the O2 supply pressure. If the pressure is too low,
an alarm appears on the ventilator display.
Air and N2O flow Pipeline or regulated cylinder pressure supplies Air directly to the ventilator (7b for Air
drive gas) and the venturi suction (21b for Air drive gas) supply connection.
Note: Original When the system switch (8) is On, air flows to the Air flow control valve (19). Because
production machines there is no balance regulator, air flow continues at the set rate during an O 2 supply
include a secondary failure.
regulator (18) at the A balance regulator (15) controls the N2O supply pressure to the N2O flow control
input to the Air flow valve(16). The O2 secondary regulator pressure at a pilot port controls the output of the
control valve (19). balance regulator. The N2O output pressure drops with decreasing O2 supply pressure
and shuts off hypoxic gas flow before the O2 supply pressure reaches zero.
A chain link system (Link-25) on the N2O and O2 flow controls (16, 11) helps keep the
O2 concentration higher than 21% (approximate value) at the common gas outlet.
Mixed gas The mixed gas goes from the flowmeter outlet, through the vaporizer manifold and
vaporizer (23) that is On, to the ACGO selector switch (E). A pressure relief valve (24)
limits the maximum outlet pressure.
The ACGO selector switch directs the mixed gas to the selected circuit to the
breathing system (26) or to the ACGO (27).
N2O Air O2 O2
4 4 4 4
3 3 3 3
25
5 5 5 5
A A A A
28 28 28 28
2 2 2
B B B
6 1 6 1 6 1
21b 21a
7b 7a
13
8 14a
C 14b E
9 10 15 18
29 29 29
11 Link 25 16 Link 25
19 26
12 17 20 27
D
24
22 22
22 22
AB.74.041
23 23
A. Cylinder Supplies
B. Pneumatic Manifold
C. Flowmeter Head
D. Vaporizer Manifold
E. ACGO Select Switch
2.2.2 Physical Figure 2-2 shows the physical path that the gas takes.
connections
AB.74.030
Vaporizer Manifold
ACGO
Aux O2
N2O
O2
Vacuum
Air
Suction
Vent Drive
SCM
A
Venturi Drive Gas
Air or O2 B
CV
VM
Suction
C
AB.74.049
2.2.4 System The system switch has two positions: On and Standby.
switch
System Switch
(electrical)
System Switch
(pneumatic)
O2 Out (Port 4)
Air In (Port 3)
O2 In (Port 3)
(Rear View)
2.2.5 Flow control Needle valves (one for each gas) adjust gas flows. Clockwise rotation decreases flow.
Counterclockwise increases flow. Mechanical stops set minimum flows for all gases.
The link system sets the maximum ratio of N2O to O2.
w WARNING The Link 25 Proportioning System sets a minimum O2 concentration in the fresh
gas stream when only O2 and N2O are used. Use of an absorber or another gas
can still cause a hypoxic mixture to be delivered to the patient, especially at low
O2 flow rates.
Minimum flows At minimum flow, two tabs prevent clockwise rotation of the valve stem. One tab is on
the stop collar; the other is on the valve body.
Valve Stem
Stop
Collar
Link system The chain link system helps assure an approximate minimum 1 to 3 ratio of flow
between O2 and N2O. When engaged (minimum O2 concentration), a tab on the O2
knob is in contact with a tab on the O2 sprocket so that the O2 and N2O knobs turn
together:
an increase in N2O flow causes an increase in O2 flow,
a decrease in O2 flow causes a decrease in N2O flow.
Linkage Tabs
O2 Knob
Higher concentrations of O2 are possible when the link system is not engaged: either by
reducing the N2O flow below the point of engagement or by increasing O 2 flow above
the point of engagement.
When the N2O flow is below the point of engagement, increasing the N 2O flow turns the
O2 sprocket without changing the O2 flow. At the point of engagement, the tab on the
O2 sprocket makes contact with the tab on the O2 knob. Once the linkage is engaged,
turning the N2O flow control counterclockwise (increase in N2O flow) also turns the O2
knob counterclockwise (increase in O2 flow) to maintain a nominal 25% minimum O2
concentration.
Decreasing the N2O flow from the engagement point rotates the tab on the O2 sprocket
away from the tab on the O2 knob. Increasing the O2 flow rotates the knob tab away
from the sprocket tab. Either action increases the O2 concentration above 21%.
Sufficiently decreasing O2 flow or increasing the N2O flow brings the two tabs back into
contact and engages the linkage.
The kick-in point is defined as the N2O flow at which the N2O valve becomes engaged
with the O2 valve flowing at 200 mL/min. This engagement point is an arbitrary
benchmark that assists in calibrating the proportioning system. The position of the
kick-in is set in the factory. During field calibration, you set the O 2 flow to 200 mL/min
and the N2O flow to the kick-in flow (usually in the range of 400 to 700 mL/min) and
then install the sprockets with the O2 knob/sprocket engaged.
Maximum flows When the Aespire machine was first produced, all gas flows in Canada required
maximum flow stops. Early production Aespire machines shipped to Canada include a
maximum stop collar on the body of the needle valve to set the maximum flow.
Canada no longer requires maximum flow stops for the gasses that the Aespire
machine is designed to deliver. Current production Aespire machines do not include
the maximum stop collar.
Maximum
Stop Collar
Valve Stem
Valve Body
Minimum Stop Collar
Manual inspiration The Bag/Vent switch closes the ventilator path (B)..
Gas flows from the bag (1), through the absorber (2), into the breathing circuit module,
and through a unidirectional valve (inspiratory check valve) to the patient (3).
During inspiration, fresh gas (FG) flows from the machine into the inspiratory limb,
upstream of the inspiratory check valve.
AP
FG
B
3
1 2 3
AB.82.026
1
AP Airway Pressure
B Bag/Vent switch to Bag
FG Fresh Gas
1 Flow to absorber
2 Flow from absorber
3 Inspiratory ow
Manual expiration The Bag/Vent switch keeps the ventilator path closed (B).
Gas flows from the patient (4), through a unidirectional valve (expiratory check valve),
and into the bag (5).
During exhalation, fresh gas flows backwards through the absorber (FG) into the
expiratory limb, downstream of the expiratory check valve.
For machines that are plumbed to return sample gas to the breathing system, the
returned gas (SGR) enters the breathing system after the expiratory check valve.
AP
FG
SGR
5
B
AB.82.027
5
FG
AP Airway Pressure
B Bag/Vent switch to Bag
FG Fresh Gas
SGR Sample Gas Return
4 Expiratory ow
5 Flow to bag
APL Valve The APL valve sets a pressure limit for manual ventilation.
As you turn the APL knob, it puts more or less force on the APL disc and seat (D/S). If
the circuit pressure is too high (6), the disc and seat inside the diaphragm opens and
vents gas to the scavenging system (7).
D/S
7 6
7
AB.82.028
7
Mechanical inspiration The Bag/Vent switch closes the manual path (V). Pilot pressure (P) closes the
exhalation valve.
Drive gas (D) pushes down on the bellows. Gas flows from the bellows (1), through the
absorber (2), and through a unidirectional valve (inspiratory check valve) to the patient
(3).
During inspiration, fresh gas flows into the inspiratory limb, upstream of the inspiratory
check valve.
AP
D
FG
1 V
AB.82.029
P
2
AP Airway Pressure
D Drive gas
FG Fresh Gas
P Pilot pressure
V Bag/Vent switch to Vent
1 Flow to absorber
2 Flow from absorber
3 Inspiratory ow
Mechanical expiration Drive-gas flow stops and the exhalation valve opens. Exhaled gas flows from the
patient (4), through a unidirectional valve (expiratory check valve) and into the bellows
(5). Residual drive gas (D) flows out of the bellows to the scavenging system (6).
If PEEP is selected, static pressure on the pilot port of the exhalation valve sets the
PEEP level.
During exhalation, fresh gas flows backwards through the absorber (FG) into the
expiratory limb, downstream of the expiratory check valve.
For machines that are plumbed to return sample gas to the breathing system, the
returned gas (SGR) enters the breathing system after the expiratory check valve.
AP
FG
SGR
D
5 5
AB.82.030
FG
AP Airway Pressure
D Drive gas
FG Fresh Gas
SGR Sample Gas Return
4 Expiratory ow
5 Flow to bellows
6 To scavenging
Mechanical inspiration The Bag/Vent switch closes the manual path (V). Pilot pressure (P) closes the
(EZchange and exhalation valve.
condenser Drive gas (D) pushes down on the bellows. Gas flows from the bellows (1), through the
ON) absorber (2a), Condenser (2b), and through a unidirectional valve (inspiratory check
valve) to the patient (3).
During inspiration, fresh gas flows into the inspiratory limb, upstream of the inspiratory
check valve.
AP
D
FG
1 V
D
2b
P
2a
AB.82.081
AP Airway Pressure
D Drive gas
FG Fresh Gas
P Pilot pressure
V Bag/Vent switch to Vent
1 Flow to absorber u
2a Flow from absorber
2b Flow from condenser
3 Inspiratory ow
Figure 2-9 Mechanical inspiration through Condenser with EZchange Canister and Condenser ON
Mechanical expiration Drive-gas flow stops and the exhalation valve opens. Exhaled gas flows from the
(EZchange and patient (4), through a unidirectional valve (expiratory check valve) and into the bellows
condenser (5). Residual drive gas (D) flows out of the bellows to the scavenging system (6).
ON) If PEEP is selected, static pressure on the pilot port of the exhalation valve sets the
PEEP level.
During exhalation, fresh gas flows backwards through the Condenser and absorber
(FG) into the expiratory limb, downstream of the expiratory check valve.
For machines that are plumbed to return sample gas to the breathing system, the
returned gas (SGR) enters the breathing system after the expiratory check valve.
AP
FG
SGR
D
5 5
6
FG
AP Airway Pressure FG
D Drive gas
AB.82.083
FG Fresh Gas
SGR Sample Gas Return
4 Expiratory ow
5 Flow to bellows
6 To scavenging
Figure 2-10 Mechanical expiration through Condenser with EZchange Canister and Condenser ON
Mechanical inspiration The Bag/Vent switch closes the manual path (V). Pilot pressure (P) closes the
(EZchange and exhalation valve.
condenser Drive gas (D) pushes down on the bellows. Gas flows from the bellows (1), through the
OFF) EZchange module bypassing the absorber (2), and through a unidirectional valve
(inspiratory check valve) to the patient (3).
During inspiration, fresh gas flows into the inspiratory limb, upstream of the inspiratory
check valve.
AP
D
FG
1 V
3
2
D
P
AP Airway Pressure
D Drive gas
FG Fresh Gas
AB.82.082
P Pilot pressure
V Bag/Vent switch to Vent
1 Flow to absorber
2 Bypass ow
3 Inspiratory ow
Figure 2-11 Mechanical inspiration with EZchange Canister and Condenser OFF
Mechanical expiration Drive-gas flow stops and the exhalation valve opens. Exhaled gas flows from the
(EZchange and patient (4), through a unidirectional valve (expiratory check valve) and into the bellows
condenser (5). Residual drive gas (D) flows out of the bellows to the scavenging system (6).
OFF) If PEEP is selected, static pressure on the pilot port of the exhalation valve sets the
PEEP level.
During exhalation, fresh gas flows backwards through the EZchange module (FG) into
the expiratory limb, downstream of the expiratory check valve.
For machines that are plumbed to return sample gas to the breathing system, the
returned gas (SGR) enters the breathing system after the expiratory check valve.
AP
FG
SGR
D
5 5
6
FG
AP Airway Pressure
D Drive gas
AB.82.084
FG Fresh Gas
SGR Sample Gas Return
4 Expiratory ow
5 Flow to bellows
6 To scavenging
Figure 2-12 Mechanical expiration with EZchange Canister and Condenser OFF
Pop-off valve The pop-off valve limits the pressure inside the bellows to 2.5 cm H 2O above the drive
gas pressure. This normally occurs when the bellows reaches the top of the housing at
the end of exhalation (5).
Excess gas (6) vents to the scavenging system (7) through the pop-off valve and the
exhalation valve.
5 5
AB.82.031
7
5 Flow to bellows
6 Pop-off ow
7 To scavenging
To ABS breathing Fresh gas (1) flows from the vaporizer manifold outlet to the ACGO Selector Switch.
system With the ACGO Selector Switch in the ABS position, fresh gas flow is channeled to the
breathing system through port 3.
The output of the O2 Flush regulator (2) is channeled to the O2 Flush valve.
When activated, O2 flush flow joins the fresh gas flow in the ACGO Selector Switch.
From
O2 Supply
From
Flowhead
1
ABS
Absorber
AB.91.120
2 5.4 psi
O2 Flush
Switch
ACGO
Selector
Switch O2
3 Sensor
1 Insp Flow
AB.74.060
1
Paw Trans
ACGO
Selector
Switch ACGO
ACGO
Variant
Auxiliary Common Gas Fresh gas (1) flows from the vaporizer manifold outlet to the ACGO Selector Switch.
Outlet With the ACGO Selector Switch in the ACGO position, fresh gas flow is channeled to the
ACGO outlet.
At the ACGO outlet, a small sample is diverted to the O 2 Sensor in the ABS for O2
monitoring.
The output of the O2 Flush regulator (2) is channeled to the O2 Flush valve.
When activated, O2 flush flow joins the fresh gas flow in the ACGO Selector Switch.
From
O2 Supply
From
Flowhead
O2 Cell
Absorber
O2 Sense
AB.91.121
2 5.4 psi
O2 Flush
Switch ACGO
Selector
Switch
O2
3 Sensor
ACGO 1 Insp Flow
AB.74.061
1
Paw Trans
ACGO
Selector ACGO
Switch ACGO
Variant
Inside Machine
Power AC Inlet
Cord Surge Control Module
with
or Line Filter Universal
Circuit Breaker and Fuses
Line Filter
Inrush Power Supply
Board
Fan
Serial Isolation 5mm x 20mm +6V @ 5A Max
Outlet Isolation Connector Board T2L/250 V
Box Transformer
RS232
6V Battery
System Switch
On/Standby Software Upgrade
Module Flash ROM
O2 Supply Switch
Speaker
O2 Flush Switch
Vent Engine
Bag/Vent
Switch
ABS On
AB.74.046
Switch
Ventilator Rotary Membrane
Canister Monitoring Encoder Switches
Release Board
Switch
Expiratory
Flow Sensor Bulkhead
Connector
Inspiratory
Flow Sensor
ACGO
O2 Sensor Switch
2.5.1 Safety features Dual redundant airway overpressure protection, linked to Plimit setting.
Volume over-delivery limits and protection.
Proprietary hose connections and fixed manifolds.
Proven mechanical components used.
10 VA electrical power limiting to potential oxygen enriched environment.
150 psi burst overpressure protection.
4
AB.74.005
2.6.1 Control Module The control module with a color display consists of two enclosures.
(color display) The rear enclosure includes:
1. inline fuses
2. a power supply
3. a cooling fan
4. a backup battery
The power supply receives AC power from the anesthesia machine. All the
power necessary to operate the ventilator comes from the power supply.
The front enclosure includes:
5. a control board (controls operation of the ventilator)
6. a backlight inverter
7. an LCD display
8. a keyboard front panel
9. a rotary encoder
10.a speaker
3
1 2
4
5
7 8 9 10
2.6.2 Control Module The control module with a non-color display consists of two enclosures.
(non-color display) The rear enclosure includes:
1. inline fuses
2. a power supply
3. a cooling fan
4. a backup battery
The power supply receives AC power from the anesthesia machine. All the
power necessary to operate the ventilator comes from the power supply.
The front enclosure includes:
5. a control board (controls operation of the ventilator)
6. a front panel assembly
The front panel assembly includes four submodules:
7. an LCD display
8. a keyboard front panel
9. a rotary encoder
10.a speaker
3
4
1
2
7 8 9
10
Figure 2-19 7100 ventilator control module
2.6.3 Monitoring The Ventilator Monitoring Board (VMB) serves as the interface between the
interface ventilators control board and the breathing system sensors and switches:
the inspiratory and expiratory flow sensors
the O2 sensor
the Bag/Vent switch
the VMB is hardwired to indicate a Circle module
the canister release switch
machines that include the canister release switch are hardwired to show
software the presence of an EZchange (CO2 Bypass) canister assembly
the control panel switch signal in an Aespire machine indicates whether
the ABS breathing system is engaged or disengaged
the Auxiliary Common Gas Outlet (ACGO) switch
task light power
The VMB is located under the tabletop (below the worksurface). Machines
that do not include monitoring use a depopulated board (Task Light Interface
Board TLIB) to power the task light and to interface the breathing system
switches.
2.6.4 Serial interface The Serial Interface and Connection Board (SICB) provides two functions. It
serves as the interface between the ventilators control board and additional
switches located in the machine and channels serial communications signals
from the controller board to the RS232 connector.
The machine switches include:
the System On/Standby switch
the O2 supply pressure switch
the O2 flush switch
The SICB also provides an on/off signal from the system switch to a remote
monitor through the RS232 connector.
2.6.5 The Pneumatic Vent The pneumatic engine enclosure is located in the back chamber of the
Engine breathing system and is shielded to contain EMI emissions. The enclosure
includes the pneumatic Vent Engine (VE) and a pneumatic Vent Engine control
Board (VEB).
The pneumatic Vent Engine consists of the hardware that drives the ventilator
bellows. It includes:
a 2-micron inlet filter
a pressure regulator
a proportional inspiratory valve
a mechanical overpressure relief valve
a free-breathing check valve
a PEEP safety valve
a supply pressure sense switch
a proportional PEEP valve
a 200 mL reservoir
a calibrated bleed orifice
The pneumatic Vent Engine Board is an interface between the engine
components and the control board and includes:
an airway pressure transducer
VE
VEB
2.7.1 The Aespire 7100 The Aespire 7100 Ventilator electronic/electrical subassemblies or modules
ventilator functional include:
blocks a Power Supply for operation under line power
and a backup battery for limited operation in case of power failure;
a Control Board with digital, analog and power circuits to manage all
operations of the ventilator;
a Front Panel Assembly that includes an LCD display for display of all
ventilation and monitoring parameters
and a keyboard for operator input;
a Ventilator Monitoring Board to preprocess patient circuit parameters and
to channel the breathing system switch states;
a Serial Isolation Connection Board to channel machine switch states and
to provide a RS232 serial output for external communication.
Control Board
MCF5206e ColdFire Processor
Memory and I/O Decoding
Flash, SRAM & EEPROM
SCR Circuitry
A/D D/A Converter
Watchdog System
Machine/Ventilator O2 Flush Inspiratory Valve Control (10 VA limited)
On/Standby switch PEEP Valve Control (10 VA limited)
12 VDC Supply (10VA limited)
DC Supply Monitoring
O2 Supply Battery Management
VEB Speaker
Airway Bag/Vent
Pressure Switch
Transducer
LCD Backlight
AB.74.028
ABS On
Switch
Exp
Insp Flow Sensors
O2 Sensor
ACGO
Breathing System
Switch
Note: For non-color displays, the backlight is
powered through the control board, as shown.
For color displays, the control module includes a
separate circuit board to power the backlight.
2.7.2 Power Supply The power supply receives AC input from the machines AC Inlet Module. The
power supply is a universal 40 watt switching supply that outputs two DC
voltages. The DC voltages are routed to the Control Board where they are
further regulated to produce the power requirements for the 7100 ventilator
system.
Input:
Universal 85264 VAC 4763 Hz
Output V1:
6.0 VDC (0.5%) at 05 A
Output V2:
9.0 VDC (5%) at 00.5 A
w WARNING
High voltage in area of Osymbol.
6V return
6V
9V return
9V
Line
Neutral
2.7.3 Sealed Lead Acid A sealed lead acid battery supplies battery backup for the 7100 ventilator.
Battery Since it only provides power in case of a power failure, the battery is in a float
charge state most of the time.
The battery meets the following:
capacity to operate ventilator system for 30 minutes (fully charged);
long float charge life;
the battery is internally fused (auto-resettable).
Input: Nominally 6.8 VDC at 25oC during float charge.
Output: +0.6 to +6 Amps during discharge
2.7.4 Control Board The Control Board contains all of the major circuit functions necessary to
control ventilator operation.
The Control Board comprises three functional circuit types:
power circuits,
analog circuits,
digital circuits.
These circuits are detailed individually in the following sections.
Note: The functions supported by Overall, the Control Boards functions include:
the color and non-color control Bus access control signals for all memory and peripheral devices
boards are identical. The circuit Interrupt handling
descriptions that follow apply to Clocks and timers for the system
both control boards, except where RS232C serial I/O
differences are noted to support
Baud rate generator for serial port
the color display.
Hard (power-up) and soft (watchdog error) reset generation
Data bus buffers
Memory and I/O decoding
Program memory with memory stick software upgrade
Safety Relevant Computing (SRC)
Watchdog system
Data acquisition
Flow valve control
PEEP valve drive and PEEP safety valve drive
Front panel interface
Audio alarm
Control Board The power section of the controller board receives the 6 VDC and the 9 VDC
Power Circuits outputs from the power supply.
The 9 VDC supply is used to charge the backup battery.
The 6 VDC supply is processed further to supply various power requirement
throughout the 7100 ventilator. In case of power failure, the battery is
switched in to supply power.
power to drive the fan (5V)
5V supply for digital circuits
3.3V supply for the CPU
5V supply for the LCD display backlight
supply for the LCD display contrast adjustment
-24V adjustable (non-color display)
1.3V to 2.3V adjustable (color display)
1.5A supply for control of the Inspiratory and PEEP valves
+12V supply for analog circuits
+12V supply for the Monitoring Interface Assembly
-12V supply for analog circuits
AC
Input 85 --- 264 VAC SWITCHER
APPROVALS: 5V (FAN 200mA MAX)
6.0V @ 5A MAX 5V LDO (MIC29150-5.0BU)
IEC 601-1
SUPPLY MONITOR & SELECTION VBUS
UL - 2601 6.2 ~ 5.3V
CSA 601 - 1 P-CH MOSFET SWITCHES
ON / STBY SWITCH
5V +-4% 1.7A MAX (DIGITAL)
5V LDO (MIC29150-5.0BT)
Control Board The analog section of the controller board processes inputs from the
Analog Circuits Monitoring Interface Board and the Pneumatic Engine Board. It multiplexes
the inputs for display by the digital section.
Inspiratory flow
Expiratory flow
Airway O2
Airway pressure
Under the control of the digital section, the analog section includes drivers for
the pneumatic engine components:
flow valve (inspiratory valve)
PEEP valve
PEEP safety valve
The switch signals from the Monitoring Interface Board and the supply
pressure signal from the Pneumatic Engine Board are passed on as inputs to
the digital section.
+12V_10VA
30 Hz PEEP_DAC
Noise
Filter
AGND INSP_FLOW 2
Insp IA 3-Pole EXP_FLOW 0 Buffer 1 FLOW_DAC
INSP Filter 1 8-Ch 3 12V_10VA_TEST
AIRWAY_PRESS
2 12-Bit 4
O2_SENSOR P12V_TEST
INSP_RET FLOW_VLV_V 3 8-Ch Serial 5 N12V_TEST
MUX ADC
PEEP_VLV_V 4 6 VBATT
EXP 5 7
30 Hz ADC_TEST_REF IBATT
Noise
Filter
AGND_REF 6 8
EXP_RET Exp IA 3-Pole 7
Filter
O2 MUX_A0
MUX_A1
O2_RET MUX_A2
30 Hz
Noise
Filter
O2_DISCONNECT
O2 IA 3-Pole
Monitoring Board Connector
SD_CLK
CANI_REL Filter 3 SD_IN
SD_OUT
ACGO
CPCVR_OPEN
INSP_DATA
FLOW_DAC
EXP_DATA
Flow FLOW_VLV_V
Valve Divider/
SCLK+ Driver Buffer
DAC A
SCLK- Dual 12-Bit
Serial DAC
DGND
DAC B PEEP PEEP_VLV_V P_PAT
Valve Divider/
Driver Buffer
PEEP_DAC P_PAT_RET
Pneumatic Engine
12V_10VA_TEST 12V_10VA
Board Connector
FLOW_DR
P12V_TEST Conditioning P12V
Circuits PEEP_DR
N12V_TEST N12V
SAFETY_VLV_ON Safety SAFETY_VLV_DR
Valve
VDD_FAIL VDD Driver SUPPLY PRESSURE LOW
VDD2_FAIL Voltage VDD2 SAFETY_VLV_FAULT
Monitor
VBUS_FAIL VBUS
43.093
Control Board The digital section of the controller board includes a MCF5206e ColdFire
Digital Circuits microcontroller. The Aespire 7100 operating software is stored in 2MB of 8-bit
(1Mx16) Flash ROM. The board includes:
1MB of 8-bit (512Kx16) static RAM (SRAM) for operation,
and (*32Kx8 for non-color) or (**64Kx16 for color) CMOS static RAM for
processing video information
The controller receives switch inputs from the front panel keyboard and the
system inputs from the Vent Monitoring Board, the Serial Isolation Connector
Board and the Vent Engine Board.
The patient circuit parameters are multiplexed through the analog section.
The LCD Display is driven through the Video Controller. It displays the
processed patient circuit parameters along with the derived alarm and
system condition messages.
Additional outputs include an audio amplifier to drive the speaker and a
RS232 driver for external communication through the Serial Isolation
Connector Board.
ALARM_SW, END_CASE_SW,
PWR_OFF_RQST, HI_PRESS,
END_CASE_SW, RATE_SW,
PEEP_SW, MENU_SW,
I:E_SW, PLIMIT_SW,
FLASH INPUT1
SAFETY_VLV_FAULT,
D24-D31
PUSHBUTTON_SW,
A1-A20,
MCF5206e COLDFIRE
MECH_VENT_SW,
D16-D31
( 1M X 16 ) 74HCT257X2
ENCODER_DIR,
STANDBY_SW,
MICROCONTROLLER
LCD BACKLIGHT
VBUS_FAIL
CCFL Backlight
INVERTER
Connector
5V
D16-D31
A0-A20
LOW_O2_SW, O2_FLUSH,
SRAM A1-A19, SYSTEM DATA BUS & ADDRESS BUS D24-D31
O2_DISCONNECT, SW1,
CPCVR_OPEN, BYPASS,
EX_SPI_IN, EX_ISSI_IN
INPUT2
BAG_VENT, ACGO,
MECH_VENT_EN,
D16-D31
SUPPLY_LOW,
A0-A20
DAC_RESET,
LCD Display Connector
EPLD-EPM7128
WATCHDOG VENTILATION
FILTER &
FERRITE
SED1353 CONTROL
BEADS
CHG_DISABLE,
OUTPUT1
MECH_VENT_E
A0-A14,
VIDEO
E2_PWR_ON,
HS, VS, HS, VS,
N, LCDV_UP,
D24-D31
FLASH_WP,
LCD_DIS LCD_DIS ADDRESS SPI SERIAL 74HCT259
LCDV_DN,
INSP_EN,
CONTROLLER
WIP_UP
DECODING INTERFACE
VA0-VA15,
VD0-VD7
D24-D31
CONTRAST OUTPUT2
DS1232
EX_SD_CS1,
EX_SD_CS0,
EX_SD_CLK,
ADJUST VIDEO SRAM
EX_SD_OUT
I2C EEPROM 74HCT573
MUX_A2,
MUX_A1,
MUX_A0,
WATCHDOG
*( 32K X 8 ) & RESET ( 2K X 8 )
**( 64K X 16 )
AUDIO AMP
LM4862M
Connector
2.7.5 Monitoring The Vent Monitoring Board (VMB) is the interface between the patient circuit
interface sensors (the inspiratory and expiratory flow sensor, the O 2 sensor) and the
ventilator control module. It also passes different switch functions through to
the ventilator control module and provides power to the task light.
Respiratory gas flow, to and from the patient, is monitored by measuring the
differential pressure across a variable orifice in each flow sensor. The
pressure transducers for measuring the differential pressure are on the VMB.
Conditioning circuitry is supplied for these transducers and for the Oxygen
sensor used in the breathing circuit.
Pressure sense tubing and signal wiring is routed from the sensors and
switches in the breathing system to the VMB. A separate cable transfers
power and signals to and from the Control Board in the display module.
Connector
ACGO ACGO
ACGO
EMI Filters and ESD
GND Suppressors
E2_+5V +5V
Regulator
E2_PWR_ON
E2_+5V
INSP_CLK
Flow Sensor
SCLK+
Connector
EXP_CLK EMI Filters and EEPROM
INSP_DATA ESD Clock SCLK-
Suppressors Receiver
EXP_DATA
GND
INSP_DATA
EXP_DATA
BAG / VENT BAG / VENT
/ABS_ON CPCVR_OPEN
/CANI_REL /CANI_REL
Suppressors Terminated
+5VA +5V SW2
Filter as Circle
Regulator Module SW3
Connector
GND GND
O2_SENSOR + O2
O2 Buffer
O2 Amp
+12V
Light
Task
Insp
Noise
IA
Filter INSP_RET
AB.43.158
Expiratory Pressure
Transducer Adjustable Gain & Offset
EXP
Buffer
Noise
Exp
Exp
IA
Filter EXP_RET
2.7.6 Serial interface The Serial Isolation Connector Board (SICB) provides three functions:
It serves as an interface between the control board and switches that are
located in the machine itself (not in the breathing system).
It processes serial communications signals from the control board to the
RS-232 Serial port on the breathing system side of the Aespire machine.
It provides remote monitor On/Off through an isolated relay.
Serial Communications The serial interface provides isolated RS232 serial communications. The TXD
(transmit) and RXD (receive) signals between the SICB and the control board
are at RS-232 levels.
Circuits on the board change the signals to digital 5V levels; isolate them
through optocouplers; then, change them back to RS-232 levels before
sending them to the outside world.
The external communications signals conform to standard
RS-232C signal standards.
The external connector is a 15-pin female D connector.
It is configured for Data Communications Equipment (DCE)
Pin 6 - Receive data
Pin 13 - Transmit data
Pin 5 - Signal ground
Pin 1 - Monitor On/Standby
Pin 9 - Monitor On/Standby return
AB.43.157
LOW_O2_SW
REM_ON
SYSTEM
SWITCH
GND
Machine Switches Connectors
LOW_O2_SW
Low O2
GND
/O2_FLUSH
O2 Flush
GND
2.7.7 Vent Engine Board The Vent Engine Board (VEB) provides two functions:
It serves as an interface between the control board and the pneumatic
engine.
It processes the output from the airway pressure transducer.
Pneumatic Engine Interface The board provides a direct connection for the drive and return lines for the
control valves on the pneumatic engine:
Inspiratory Flow Valve
PEEP Valve
PEEP Safety Valve
The board routes the Supply Pressure Switch signals to the control board.
Airway Pressure Transducer The VEB includes a +5VA regulator to power the airway pressure transducer
circuitry. The circuits provide EMI filtering, signal amplification, and buffering.
FLOW_DR
FLOW VALVE
CONNECTOR FLOW_RET
/SUPPLY_LOW
SUPPLY_LOW_RET
PEEP VALVE PEEP_DR
SAFETY VALVE
LOW SUPPLY PRESSURE PEEP_RET
PRECISION SAFETY_VLV_DR
VOLTAGE SWITCH CONNECTOR
CONNECTOR
AMPLIFIER
PATIENT
BUFFER
AB.43.097
+5VA VOLTAGE 12V_10VA
REGULATOR
2.8.1 Drive gas Drive gas (can be selected from O2 or Air) enters the Vent Engine (1) at a pressure of
241 to 690 kPa (35 to 100 psi) through a 2-micron filter (2) that is located under the
gas inlet fitting.
Val
Proportional
PEEP Valve
PEEP
Safety
Valve
Inspiratory
Flow
3
Control
Valve
25 psi
@ 15 LPM
1
Vent Engine
2.8.2 Pressure Regulator The pressure regulator (3) is a non-relieving pressure regulator that regulates
high pressure filtered supply gas down to 172 kPa (25 psi).
Valve
tional
Valve
Pressure Switch
PEEP
Safety
Valve
Inspiratory
Flow
3 Control
Valve
25 psi
@ 15 LPM
Mechanical Overpressure
Valve (110 cm H2O) Popoff
Valve
rtional
Valve
Pressure Switch
PEEP
Safety
Valve
Inspiratory
Flow
Control
Valve
25 psi
@ 15 LPM
2.8.4 Exhalation The exhalation valve contains an elastomeric diaphragm that is used to control the
(PEEP) Control pressures in the breathing circuit. The exhalation valve includes two male ports on the
bottom for:
Bellows drive gas (5)
Exhalation valve pilot (6) - (manifold pressure)
The exhalation valve includes three ports on top that connect to the bellows base
manifold:
Drive gas pass through (7)
Drive gas return and pop-off valve flow (8)
APL exhaust flow to scavenging (9)
A port at the back of the exhalation valve (10) connects to the down tube that directs all
the exhaust flows to the scavenging receiver.
The exhalation valve is normally open. When the exhalation port is open, gas flows from
the bellows housing to the scavenging port. Approximately
2 cm H2O of pilot pressure is necessary to close the valve. Pilot control of the
exhalation valve is done with PEEP Control Valve (A), Supply Pressure Switch (B), and
the PEEP Safety Valve (C).
10
5 6
Mechanical Overpressure
Valve (110 cm H2O) Popoff
Exhalation Valve
Valve (2.0 cm H2O bias)
Proportional
PEEP Valve
A C
2.8.5 Reservoir and bleed The reservoir (11) is a 200 ml chamber that dampens the manifold (pilot)
resistor pressure pulses to the exhalation valve.
The bleed resistor (12) is a controlled leak from 0 to 10 L/min in response to
circuit pressures from 0 to 100 cm H2O. The small quantity of pneumatic flow
exhausting through the bleed resistor permits control of the exhalation valve's
pilot pressure by modulation of the valve output. The bleed resistor exhausts
only clean drive gas and must not be connected to a waste gas scavenging
circuit. The output is routed away from the electrical components to make
sure that systems using oxygen drive gas meet the 10VA limitation
requirement for oxygen enrichment.
(2.0 cm H2O bias)
10 cm H2O
11
200 mL Reservoir
Negative Pressur
12 relief valve
PM
Control Bleed to Ambient
1.0 LPM @ 3.0 cm H2O
if continuous (rate dependent)
Ambient A
2.8.6 Bellows The Bellows assembly is the interface between drive gas and the patient circuit in the
Pressure Relief breathing system. The pressure relief valve (or pop-off valve) in the bellows
assembly (13) limits pressure in the patient circuit. Excess fresh gas is discharged
Valve through the exhalation valve into the gas scavenging system.
The pressure relief valve is normally closed, maintaining approximately 1.5 cm H 2O in
the breathing circuit in a no flow condition, enough to keep the bellows inflated. It is
piloted closed during inspiration and remains closed until the bellows is refilled during
exhalation. If the pressure in the patient circuit exceeds 4 cm H2O, the pop-off valve
opens to exhaust excess fresh gas flow at a rate up to 4 L/min.
Atmosphere
eathing
k Valve
pressure
cm H2O) Popoff
Exhalation Va
Valve (2.0 cm H2O b
0-1
0-1
0-2
12
2.8.7 Mechanical The Mechanical Overpressure Valve (MOPV) is a mechanical valve (1 14) that operates
Overpressure regardless of electrical power. It functions as a third level of redundancy to the
ventilator's pressure limit control functions, supplying pressure relief at approximately
Valve 110 cm H2O.
Free Breathing
Check Valve
Mechanical Overpressure
Valve (110 cm H2O) Popof
Valve
Proportional
PEEP Valve
14 PEEP
Safety
Valve
Inspiratory
Flow
Control
Valve
2.8.8 Free 15) helps assure the patient can spontaneously breathe. The
The free breathing valve (1
Breathing Valve ventilator is programmed to supply a specified number of breaths per minute to the
patient. If, in between one of these programmed cycles, the patient needs a breath
(spontaneous), the free breathing valve permits the patient to inhale. The free
breathing valve is closed on mechanical inspiration.
e Atmosphere
Free Breathing
Check Valve
Mechanical Overpressure
Valve (110 cm H2O) Popoff
15 Valve
nal
ve
essure Switch
EP
ety
ve
2.8.9 Breathing Two flow sensors are used to monitor inspiratory and expiratory gas flow. The
Circuit Flow inspiratory flow sensor is downstream of the gas system inspiratory check valve.
Feedback from the inspiratory transducer is used to supply tidal volumes that make
Sensors allowances for the effects of fresh gas flow and circuit compressibility. The expiratory
flow sensor is located at the input to the gas system expiratory check valve. Feedback
from the expiratory flow sensor is used to supply signals for expiratory tidal volume
monitoring and the breath rate.
ervoir
Negative Pressure Expiratory Gas Monitor
relief valve Flow Sensor
ed to Ambient
@ 3.0 cm H2O
s (rate dependent)
Drain
Absorber
Patient
si
NO
O2 Inspiratory
NC Sensor Flow Sensor
3
ACGO 1
Selector
Valve
ACGO
Airway
Pressure P
Gauge
PT PT
Exp. Flow Trans.
PT
Pneumatic
Engine
Board
w WARNINGS After any repair or service of the Aespire system, complete all tests in this section.
If a test failure occurs, make appropriate repairs and test for correct operation.
w WARNING Do not leave gas cylinder valves open if the pipeline supply is in use.
Cylinder supplies could be depleted, leaving an insufficient reserve
supply in case of pipeline failure.
Before testing the system, ensure that:
The equipment is not damaged.
Components are correctly attached.
The breathing circuit is correctly connected, not damaged.
Pipeline gas supplies are connected.
Cylinder valves are closed.
Models with cylinder supplies have a cylinder wrench attached to the
system.
Models with cylinder supplies have a reserve supply of O 2 connected to
the machine during system checkout.
The casters are not loose and the brakes are set and prevent movement.
The power cord is connected to a wall outlet. The mains indicator comes
on when AC Power is connected.
w WARNING Do not leave gas cylinder valves open if the pipeline supply is in use.
Cylinder supplies could be depleted, leaving an insufficient reserve
supply in case of pipeline failure.
4. Connect the pipeline supplies one at a time and ensure that the
corresponding gauge indicates pipeline pressure.
w WARNING Nitrous oxide (N2O) flows through the system during this test. Use a safe
and approved procedure to collect and remove it.
1. Set up the gas scavenging system.
a. Connect the AGSS to a gas scavenging system.
b. Attach a patient circuit and plug the patient port.
c. Attach a bag to the bag port (or plug the bag port).
d. Set the Bag/Vent switch to Bag.
e. Adjust the APL valve to minimum.
2. Connect the pipeline supplies or slowly open the cylinder valves.
3. Turn all flow controls fully clockwise (minimum flow).
4. Set the ACGO selector switch to ABS.
5. Turn on the system.
6. Confirm that the O2 sensor measures 21% in room air and 100% in pure
O2. If not, calibrate the O2 sensor.
7. Make sure that:
For a dual-tube O2 flowmeter,
the O2 flowtube shows 0.025 to 0.075 L/min.
For a single-tube O2 flowmeter,
the O2 flowtube shows 0.175 to 0.225 L/min.
The other flowtubes show no gas flow.
8. Set the flow controls to mid range of each flowtube and make sure that the
flowtube floats rotate and move smoothly.
Note If the system does not include N2O, skip steps 9 and 10.
9. Check the Link proportioning system concentration (increasing N 2O flow).
Observe the following precautions:
a. Start with all valves at the minimum setting.
b. Adjust only the N2O flow control.
c. Increase the N2O flow as specified in the following table and make sure
the O2 concentration is in range.
Set the O2 flow Set the Air flow (L/min) O2 monitor range
(L/min)
4.0 3.0 61% to 71%
3.5 6.0 45% to 55%
1.5 8.0 28% to 38%
w WARNING The following procedure will test for any significant malfunction of the
Link system but it will not confirm proper calibration. Periodic calibration
procedures using an accurate and properly calibrated O2 monitor must
be performed as recommended in the Users Reference Manual, Part 2,
section 3 User Maintenance.
w Nitrous oxide (N2O) flows through the system during this test. Use a safe
and approved procedure to collect and remove it.
1. Set up the gas scavenging system.
a. Connect the AGSS to a gas scavenging system.
b. Attach a patient circuit and plug the patient port.
c. Attach a bag to the bag port (or plug the bag port).
d. Set the Bag/Vent switch to Bag.
e. Adjust the APL valve to minimum.
2. Connect the pipeline supplies or slowly open the cylinder valves.
3. Turn all flow controls fully clockwise (minimum flow).
4. Set the ACGO selector switch to ABS.
5. Turn on the system.
6. Make sure that:
For a dual-tube O2 flowmeter,
the O2 flowtube shows 0.025 to 0.075 L/min.
For a single-tube O2 flowmeter,
the O2 flowtube shows 0.175 to 0.225 L/min.
The other flowtubes show no gas flow.
7. Set the flow controls to mid range of each flowtube and make sure that the
flowtube floats rotate and move smoothly.
Note If the system does not include N2O, skip steps 8 and 9.
8. Check the Link proportioning system (increasing N2O flow).
Observe the following precautions:
a. Start with all valves at the minimum setting.
b. Adjust only the N2O flow control.
c. Increase the N2O flow as specified in the following table and make sure
the O2 flow is as specified.
d. If you overshoot a setting, turn the O2 flow control clockwise until the
N2O flow decreases to the previous setting before continuing the test.
3.5 Pressure relief To check the pressure relief valve (vaporizer manifold outlet).
tests 1. Turn all flow controls fully clockwise (minimum flow).
2. Set the ACGO selector switch to ACGO.
3. Connect a gauge or a digital manometer to the
ACGO outlet using the positive pressure leak
test adapter.
4. Adjust the O2 flow to 0.5 L/min. Test
Adapter
5. Verify that the test device reading stabilizes
within the following range:
3160 kPa, 230450 mm Hg, 4.58.5 psi.
6. Remove the test device and the adapter.
test 2. Stop the O2 supply. (Disconnect the pipeline supply or close the cylinder
valve.)
3. Make sure that:
a. The low O2 supply alarm occurs.
b. The N2O (if equipped) and O2 flows stop. The O2 flow stops last.
c. Air (if equipped) flow continues.
d. Gas supply alarms occur on the ventilator if the ventilator uses O 2 as
the drive gas.
4. Turn all of the flow controls fully clockwise (minimum flow).
5. Reconnect the pipeline supplies.
From To
O2 Supply O2 Flush Valve
(and optional Auxiliary O2 Flowmeter)
O2 Flush Output
ACGO
Selector
Switch
From
Vaporizer Manifold
w WARNING Do not use a system with a low-pressure leak. Anesthetic gas will go into
the atmosphere, not into the breathing circuit.
ACGO Outlet
4. Turn off all vaporizers.
5. Test the anesthesia machine for low-pressure leaks:
a. Open the flow controls one and a half turns counterclockwise.
b. Connect the test device to the ACGO outlet.
c. Compress and release the bulb until it is empty.
d. The vacuum causes the floats to move. This is usual. If the bulb
completely inflates in 30 seconds or less, there is a leak in the low-
pressure circuit.
6. Test each vaporizer for low-pressure leaks:
a. Set the vaporizer to 1%.
b. Repeat step 5.
c. Set the vaporizer to OFF.
d. Test the remaining vaporizers.
7. Disconnect the test device.
8. Turn all flow controls fully clockwise (minimum flow). Do not over tighten.
w WARNING Agent mixtures from the low-pressure leak test stay in the system.
Always flush the system with O2 after the low-pressure leak test (1 L/min
for one minute).
Turn off all vaporizers at the end of the low-pressure leak test.
9. Flush the system with O2:
a. Set the system switch to On.
b. Set the O2 flow to 1 L/min.
c. Continue the O2 flow for one minute.
d. Turn the O2 flow control fully clockwise (minimum flow).
e. Set the system switch to Standby.
w CAUTION Do the positive pressure leak test at the ACGO outlet only.
1. Set the ACGO selector switch to ACGO.
2. Turn all flow controls fully clockwise (minimum flow).
3. Using the positive pressure leak test adapter, connect the ISO or BSI
specific leak test device to the ACGO outlet. Push the adapter into the
ACGO outlet throughout the test to get a good seal.
.5
1.5
1
.4
.5
2
.3
L/min O2
2.5
.2
0
.1
kP
3
(Top View) (Front View)
3.5
4. Keep flowmeter of the test device vertical for accurate results.
5. Fully open the needle valve on the test device (counterclockwise).
w CAUTION If the needle valve is not fully open, this test can damage the pressure
gauge on the test device.
6. Set the system switch to On.
7. Open the O2 flow control and set a total flow of 0.4 L/min through the
flowmeter on the test device.
8. Make sure that the pressure gauge on the test device reads zero and that
all other flow controls are fully closed.
9. Close the needle valve on the test device until the test gauge reads:
ISO 5358 3 kPa
BSI 4272.3 20 kPa
w WARNING Agent mixtures from the low-pressure leak test stay in the system.
Always flush the system with O2 after the low-pressure leak test (1 L/min
for one minute).
Turn all vaporizers OFF at the end of the low-pressure leak test.
14. Flush the system with O2:
a. Set the system switch to On.
b. Set the O2 flow to 1 L/min.
c. Continue the O2 flow for one minute.
d. Turn the O2 flow control fully clockwise (minimum flow).
e. Set the system switch to Standby.
Check Valves 3. Make sure that the check valves on the breathing circuit module work
correctly:
a. The Inspiratory check valve rises during inspiration and falls at the start
of expiration.
b. The Expiratory check valve rises during expiration and falls at the start
of inspiration.
Service Mode Tests 5. Enter the Service Mode: Push and hold the adjustment knob on the
ventilators display and set the system switch to On.
a. Select and confirm Service Modes.
b. Follow the menu structure outline below to reach the adjustment for the
inspiratory flow valve. Select and confirm at each step.
Diagnostics Tests/Tools
Breathing System Leak Test
c. Follow the instructions on the screen.
d. The leak rate should be less than 200 mL/min.
For machines with a single-tube O2 flowmeter, the pressure reading
should reach 30 cm H2O at minimum flows greater than 200 mL/min.
Note: If test fails, see Section 7.2, Breathing System Leak Test Guide.
w WARNING Make sure that there are no test plugs or other objects caught in
the breathing system.
If the indicator is not on, the display assembly is not receiving AC power.
Verify AC power to the machine (reset circuit breaker).
Check fuses in display assemblys inlet module.
Check fuses in machines AC inlet assembly.
2. Set the system switch to On.
3. Unplug the power cord with the system turned on.
4. Make sure that the power failure alarm comes on.
5. Make sure the following message is on the ventilator display:
On Battery - Power OK?
6. Connect the power cable again.
7. Make sure the alarm cancels.
2. Make sure that the resistance to ground is less than 0.2 between an
exposed metal surface and the ground pin on the power cord.
w WARNING: Post-Service Checkout is required after you complete this section. You must
perform Section 3.1 Post-service checkout after performing any maintenance,
service or repair. Failure to do so may result in patient injury.
In this section To ensure proper operation, the Aespire 7100 Ventilator includes several tests that run
automatically (self tests) and a series of menu pages that a qualified service person can
use to test, calibrate, or troubleshoot ventilator related components in the Aespire
anesthesia machine (Service Mode).
4.1 Self tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
4.2 Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
4.3 About Ventilator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
4.4 Alarm Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
4.5 Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
4.6 Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
4.7 User Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
4.7.1 Screen Contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
4.8 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
4.9 Calibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
4.9.1 O2 Calibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
4.9.2 Zero Flow and Airway Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
4.9.3 Adjust Drive Gas Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
4.9.4 Airway Sensor Span . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
4.9.5 PEEP Valve Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
4.9.6 Inspiratory Valve Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19
4.9.7 Pressure Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
4.9.8 Service Calibrations Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23
Continuous tests These tests are run continuously during normal operation and alarms are associated
with each test. A failure causes an alarm to display on the screen in the alarm display
area.
Supply voltage checks
Battery voltage checks
Inspiratory control valve DAC and voltage feedback
PEEP control valve DAC and voltage feedback
Periodic tests These tests are run every 30 seconds during normal operation. Alarms are associated
with each test. A failure causes an alarm to display on the screen in the alarm display
area.
CPU Test
Display RAM walking pattern test
Data RAM walking pattern test
FLASH ROM CRC verification
Language Specific
Service Modes Menu The Service Modes main menu displays the service tests you can select.
The selectable service tests are displayed in categorical order. But you can select the
service test from this menu in any order. The following sections in this manual are
sequenced in the order that they appear on the screen.
Scroll Data To view all the log entries, select Scroll Data.
Then, use the control knob to scroll through the entries.
To exit Scroll Data, press the control knob.
Clear Alarm Log To clear the alarm log, select Clear Alarm Log. The system asks you to confirm that you
want to clear the alarm log.
Scroll Data To view all the log entries, select Scroll Data.
Then, use the control knob to scroll through the entries.
To exit Scroll Data, press the control knob.
Clear Error Log To clear the error log, select Clear Error Log. The system asks you to confirm that you
want to clear the error log.
4.6 Language
The text shown in the normal mode of operation is language sensitive. However, the
Service Confirmation menu (except for text Normal Operation) and all the Service
Modes menus are shown only in English.
The Language menu is used to set the specific language for normal operation.
The 7100 ventilator supports the following languages. The language selections appear
in language specific text.
The following additional languages are available in Software revisions 1.4 and greater.
The language setting is stored in EEPROM with the default setting as English.
4.7.1 Screen The range from minimum to maximum screen contrast varies for individual displays. The
Contrast Screen Contrast menu is used to tailor the range so that the screen image is still visible
at minimum and maximum contrast settings for the user.
Remarks The Minimum Screen Contrast and the Maximum Screen Contrast settings set the
range of contrast values for the operator.
The Optimal Screen Contrast setting sets the default value.
Set the altitude The accuracy of some of the ventilator measurements is altitude sensitive. To ensure the
specified accuracy, the altitude setting should be set to the specific altitude where each
machine is located.
Altitude settings range from -400 to 3600 meters in increments of 100 meters.
The setting is saved in EEPROM; the default value is 300 meters.
Select drive gas Either O2 or Air can be used as the drive gas for the ventilators pneumatic engine.
To compensate volume calculations for the specific density of the drive gas used, the
drive gas selection on this menu must match the actual drive gas.
To change the actual drive gas, refer to Section 4 of the respective anesthesia machine
Technical Reference Manual.
w Caution If you change the drive gas, you must also change the drive gas selection on this
service setup screen. If the drive gas selection and the actual drive gas do not
agree, volumes will not be correct.
Note A similarly worded warning will appear when you change the O 2 Monitoring, Volume
Monitoring, and the Volume Compensation settings.
E Alarm Limits Automatic User Adjustable
4.9 Calibrations
The Calibrations menu includes service level calibrations of components that need
periodic adjustment to maintain specified accuracy.
Remarks You can enter these procedure in any order. However, the procedures appear in a logical
sequence. Some of the latter procedures require you to have completed some of the
earlier procedures.
Additionally, these procedures require you to disassemble and reassemble parts of the
breathing system. Accordingly, the procedures are arranged to minimize the
disassembly and reassembly process.
4.9.1 The O2 Calibrations take into account the altitude setting. Before starting the
O2 Calibrations calibrations, ensure that the altitude setting (in System Configuration menu) is set to
the appropriate altitude for the machine location.
For the 21% O2 Calibration software reads the A/D value for the O2 sensor when the
O2 sensor is exposed to room air (21% O2).
If this A/D value is not within the tolerance, the calibration fails.
If the calibration passes, the A/D value is stored in the EEPROM.
The sensor must be calibrated at 21% O2 before calibration at 100% O2.
Remarks Remove the O2 sensor from the breathing system and expose it to room air.
The displayed reading should be 21% 2% to pass the calibration requirements.
Place the sensor that passed the 21% test in the breathing system and expose it to
100% O2.
If it displays readings higher or lower than required to pass, replace the sensor.
Remarks Ensure that the flow sensor module is disconnected from the breathing system.
Fail indicates a problem in the VMB (Inspiratory Flow and Expiratory Flow transducers)
or the VEB (Airway Pressure transducer).
Check the transducer outputs using the Display A/D Channels menu (on
Diagnostics menu).
If any of the transducers are out of tolerance:
Follow Section 7.5.3, Inaccurate Volume Ventilation Troubleshooting, for
issues with inspiratory and expiratory flow transducers.
Replace the VEB assemblies, for issues with the airway pressure transducer.
4.9.3 The Adjust Drive Gas Regulator procedure establishes the required flow rate through
Adjust the drive gas regulator for proper calibration.
Drive Gas
Regulator
Remarks The drive gas regulator should provide a constant gas input pressure of 172 kPa (25
psi).
You can verify this pressure by attaching a pressure test device to the regulator
pressure port (shown below) and adjusting the regulator to 172 1.72 kPa (25 0.25
psi).
Regulator
pressure
port
4.9.4 The Airway Sensor Span procedure calculates a gain coefficient for the airway pressure
Airway Sensor transducer.
Span
Calibration setup 1. Remove the ABS breathing system from the machine.
2. Remove the Exhalation Valve.
3. Separate the Bellows Module from the Circuit Module.
4. Install the Circuit Module only.
5. Attach a patient circuit tube to the Calibrated Flow Orifice test tool.
Note: The Calibrated Flow Orifice for the Aespire has the same orifice size as the
Calibrated Flow Orifice for the Aestiva; however, the Aestiva orifice has a larger
outside dimension that does not fit through the Vent Engine cover plate. To use the
Aestiva orifice with an Aespire machine, you must remove the cover plate to access
the manifold port.
6. Insert the Calibrated Flow Orifice into the manifold (PEEP) port.
Calibrated Flow Orifice
1504-3016-000 7. Connect a pressure sensing tee to the inspiratory flow patient connection.
for the Aespire machine
8. Connect the open end of the patient circuit tube to the flow port of the pressure
sensing tee.
9. Connect a manometer to the pressure sensing port of the tee connector.
To manometer
Remarks If the Set PEEP Valve value is set too high, pressure in the circuit may exceed 109 cm
H20 and trip the pressure limit switch. If this happens, lower the Set PEEP Valve
value.
Real-Time
Value
Calibration setup After completing the Airway Sensor Span calibration in the previous section, remove
the pressure sensing tee and connect the open end of the patient circuit tube directly
to the inspiratory flow patient connection.
If you are only performing the PEEP Valve calibration, connect the Calibrated
Flow Orifice as detailed in the Airway Sensor Span setup. Then, connect the
open end of the patient circuit tube directly to the inspiratory flow patient
connection.
Ensure that the test tubing is leak free.
Calibration procedure 1. To enter the calibration menu, select Next PEEP Valve Cal Menu.
2. Establish drive gas for the ventilator.
3. Set all flow controls to minimum.
4. To start calibration, select Start PEEP Valve Calibration.
Note: This calibration procedure may take up to 20 minutes.
The calibration status and progression bar are displayed at the bottom of the screen.
Remarks The calibration routine opens the PEEP valve stepwise and reads the resulting airway
pressure. The accumulated values represent the output linearity curve for this particular
PEEP valve. The accumulated data include:
Lower PEEP Valve Curve
Upper PEEP Valve Curve
PEEP Temperature Comp
PEEP Nominal Resistance
The data is stored in EEPROM and is used during normal operation to compensate for
the individual valves output characteristics.
Calibration setup 1. Remove the bellows and pressure relief valve (pop-off) from the bellows assembly.
Remove the bellow housing.
Remove the bellows and bellows mounting rim as an assembly.
Remove the pressure relief valve.
Replace the bellows housing.
Note: If you have just completed the PEEP Valve Calibration, remove these
parts from the bellows assembly and then reassemble the breathing system.
2. Attach a patient circuit tube to the Calibrated Flow Orifice test tool.
3. Connect the open end of the patient circuit tube to the inspiratory flow patient
connection.
4. Set the Bag/Vent switch to Vent.
5. Establish drive gas for the ventilator.
6. Adjust fresh gas flow so the actual Airway Pressure reads 1.05 cm H 2O.
Calibration procedure 1. To enter the calibration menu, select Next Inspiratory Valve Cal Menu.
2. To start calibration, select Start Inspiratory Valve Calibration.
Note: This calibration procedure may take up to 5 minutes.
The calibration status and progression bar are displayed at the bottom of the screen.
Note For the color display, if the message Complete! Max flow may be low W
is displayed, the jumpers on the Control Board may be installed incorrectly
(refer to Section 10.25.1).
Real-Time Value
Remarks With the bellows removed from the bellows assembly, the output from the inspiratory
valve is routed through the breathing system to the Airway Pressure transducer. The
calibrated orifice provides a precise restriction to the flow.
The calibration routine opens the Inspiratory valve stepwise and reads the resulting
pressure at the airway pressure transducer. The inspiratory flow displayed on the screen
for this test is a calculation of the pressure measured by the airway pressure transducer
times a constant (based on the size of the orifice in the test tool).
The accumulated values represent the output linearity curve for this particular
Inspiratory valve.
The data is stored in EEPROM and is used during normal operation to compensate for
the individual valves output characteristics.
4.9.7 The Pressure Sensitivity calibration calculates correction factors for common mode
Pressure pressure sensitivity of the differential pressure transducers. The pressure transducers
Sensitivity must be calibrated whenever the VMB or the Control Board is replaced.
This pressure sensitivity calibration is not an automated calibration. Follow the prompts
on the screen to complete the calibration. The routine calculates the pressure sensitivity
at four different pressures (10, 20, 40, and 60 cm H2O) and extrapolates the fifth
pressure point (70 cm H2O). It uses these five pressure points along with the zero offsets
to find the pressure sensitivity.
If the calibration passed, the five pressure sensitivity points are stored in the
EEPROM.
If the calculations for the pressure sensitivity are not within the correct
tolerance, the calibration fails.
Calibration procedure 1. Perform the Zero Flow and Airway Sensors calibration.
2. Perform the Airway Sensor Span.
3. Occlude the opening at the bag arm
4. Connect short patient tubing from the inspiratory flow patient connection to the
expiratory flow patient connection.
5. Set the Bag /Vent switch to the Bag position.
6. Select Next Pressure Sensitivity Menu for the next calibration menu.
Real-Time Value
Adjust the APL and fresh gas flow until the real-time pressure reads a stable 20
cm H2O after 5 seconds, select Save Value.
Adjust the APL and fresh gas flow until the real-time pressure reads a stable 40
cm H2O after 5 seconds, select Save Value.
Adjust the APL and fresh gas flow until the real-time pressure reads a stable 60
cm H2O after 5 seconds, select Save Value.
4.9.8 The Service Calibrations Required W menu displays which setting or calibration must
Service be performed when the Service Calibration w alarm appears in normal operation.
Calibrations After the setting or calibration is properly completed, the text for that setting or
Required calibration will be removed.
Remarks The normal operation Service Calibration w alarm message is only removed when all
the required settings or calibrations are completed.
The Set Service Calibration W menu item is used by the factory to activate the
Service Calibration w alarm and require that all settings and calibrations be
performed when the machine is set up for operation at its permanent location.
You can reset the Service Calibration w alarm in the field by selecting
Yes when the following warning appears after selecting the
Set Service Calibration W menu item.
4.10.1 The Display A/D Channels menu displays the measured values for each of the A/D
Display A/D channels.
Channels
Remarks The Counts and Actual values are typical for a calibrated system with baseline inputs to
the various sensors.
Refer to the following table for additional details for each of the displayed channels.
Battery Current 997 -0.008 Amps -2 to 6.190 Amps < -750 mA = Battery Charger Fail
-330 to -700 mA (1 min) = Battery charging w
Notes:
1. The Counts column shows typical digital counts from the computer with the expected (range) shown in parenthesis.
2. The Actual column shows current values in real time with inputs in their baseline state.
4.10.2 The Display Discrete I/O Signals menu displays discrete binary signals associated with
Display machine switch positions.
Discrete I/O There are several types of switches in the machine:
Signals
some switches are mechanically operated,
some switches are pneumatically operated,
some switches are electronic,
some switches are software derived.
Mechanical switches ACGO Switch Vent or Aux CGO (machines equipped with ACGO)
CO2 Bypass Off or On (hard-wired On if Canister Release switch is installed)
Canister Status Closed or Open
(Closed by default if Canister Release switch not installed)
Control Panel Cover Closed or Open (refers to removal of ABS on Aespire machines)
Bag/Vent Status Vent or Bag
4.10.3 The Display Battery Status menu displays the battery charge status.
Display Battery
Status
Battery Status Battery Charged If none of the following conditions are in effect.
(on line power)
Battery Charging w Battery Current = -330 to -700 mA
Battery Failure Low Battery Voltage <2 Volts
Battery Failure High Battery Voltage >8 Volts
Battery Current High Battery Current >6 Amps
Battery Charger Fail Battery Current < -750 mA
Remarks While the battery is charging, the battery current is displayed as negative current. If the
battery has been on charge for a long time (8 hours minimum) and you do not get a
Battery Charged display:
The battery has failed and you should replace it.
When the battery is discharging, the battery current is displayed as positive current.
Disconnect the power cord and observe the discharge current.
A good, fully-charged battery should maintain a steady discharge current (for
at least 30 minutes under normal operation).
If the discharge current and battery voltage drops off quickly, the battery has
failed and you should replace it.
w Warning Depending on the battery condition and the ventilator settings, continued
operation of the mechanical ventilation may result in sudden shut down.
4.10.4 In the Test Panel Switches menu the software is set up to receive keyboard button
Test Panel presses and rotary encoder turns.
Switches Press each button on the panel and the control knob.
When a button is pressed, the icon on the screen next to the button should be
highlighted and filled with a checkmark.
When the button is released, the button icon should be reverse-highlighted.
After testing all the buttons and the control knob, select Test Encoder Knob Turn to test
the encoder.
As you turn the encoder knob, verify that:
each click of the encoder in the clockwise direction increments the clockwise
total.
each click of the encoder in the counterclockwise direction increments the
counterclockwise total.
Remarks If any of the select buttons test fails, replace the front panel keyboard assembly.
If the encoder knob test fails, replace the rotary encoder assembly.
4.10.5 The Valves - Test Tool menu allows you to manually control the Inspiratory Valve, the
Valves - Test Tool PEEP Valve, and the PEEP Safety Valve, and observe key pressure and flow
measurements on the same screen.
This menu is mainly used to test the drive gas circuit or to supply drive gas flow for
several tests:
It is used to test the mechanical overpressure valve as detailed in Section 6.4,
"MOPV pressure relief valve test."
It is used to check primary regulators as detailed in Section 5.1.2.
Set Inspiratory Valve The flow through the Inspiratory Valve can be set:
from Off to 70 L/min in 0.25 L/min increments.
Set PEEP Safety Valve The PEEP Safety Valve can be set:
Closed or Open
4.10.6 When you start the CPU and Memory Tests, the procedure cycles through the CPU, RAM,
Test CPU and Display RAM, and ROM tests until you stop the tests. The procedure keeps track of how
Memory many times each test passed or failed.
If you note that any of these tests have failed, replace the control board.
CPU Test The software tests the CPU integer instructions as well as the CPU register(s). If this test
fails, the CPU did not perform an integer instruction correctly, or the CPU register(s) have
failed.
RAM Test The software tests all of the external RAM memory with a walking bit pattern test. It writes
a certain bit pattern to a block of memory and then reads that block of memory. If the bit
pattern that it wrote is not the same bit pattern that it reads back the test fails.
Display RAM Test The software tests all of the display RAM memory via a walking bit pattern test. It writes
a certain bit pattern to a block of memory and then reads that block of memory. If the bit
pattern that was written is not the same bit pattern that it reads back the test fails.
ROM Test The software tests the Flash ROM via a CRC check (Cyclic Redundancy Check). A CRC
value has been calculated for the Flash ROM memory and this value is stored in the
Flash ROM. This test recalculates the CRC for the Flash ROM and compares it to the
value stored in Flash ROM. If the value that was calculated does not equal the value that
was stored in Flash ROM, the test will fail.
4.10.7 When you start the EEPROM Test, the procedure performs the test once and notes
Test EEPROM whether the test passed or failed.
If the EEPROM test fails, replace the control board.
EEPROM Test The software tests all of the EEPROM memory via a bit pattern test. It writes a certain
pattern to a block of memory and then reads that block of memory. If the bit pattern that
was written is not the same as the bit pattern read back, the test fails.
4.10.8 The Test Serial Port menu includes directions for two tests.
Test Serial Port External Serial Port Testing: The external test requires that you jumper pins 6
and 13 of the serial connector.
13
Internal Serial Port Testing: The internal test does not require any setup; it
only tests serial port related components on the control board.
Each test routine sets up the serial port circuits so transmit data is echoed directly back
to the receive circuits. The test fails if the data sent out is not equal to the data received.
Remarks If only the internal test fails, replace the control board.
If both tests fail:
Check the harness connections between the control board and the Serial
Isolation Control board (SICB).
Replace the SICB.
4.10.9 The 5-Volt supply (VDD) is derived in the power section of the control board. It is used to
Test 5V Fail Alarm power the digital circuits throughout the ventilator. If the 5-Volt supply fails, the
ventilator will sound a continuous alarm tone when the system switch is turned on.
To Test the 5V Fail Alarm, follow the directions on the screen.
Remarks If the alarm tone does not sound, replace the control board.
4.10.10 This test only checks the control circuit for the Inspiratory Valve. Since it does not look at
Test Inspiratory the output of the Inspiratory Valve, you do not have to have an active drive gas supply.
Valve To Test the Inspiratory Valve the software opens the inspiratory valve in increments
until the flow valve is completely open.
At each of the settings of the inspiratory valve the A/D channel for Flow DAC
Feedback is recorded.
If the A/D for the Flow DAC Feedback is not within the correct tolerance the test
fails.
Remarks A failure can be caused either by the control circuit or a flow valve malfunction.
To check the control circuit,
1. Go to the Valves - Test Tool menu.
2. Set the Inspiratory Valve to 0.25 L/min. The Flow Valve Volt reading should
increase slightly.
3. If the reading jumps high (~ 6 Volts), the control circuit for the Inspiratory Valve is
open or the Inspiratory Valve is defective.
4. Measure the resistance between the leads at the unplugged Inspiratory Valve
connector. A multimeter should read 1.5 0.15 ohms.
4.10.11 This test only checks the control circuit for the PEEP Valve. Since it does not look at the
Test PEEP Valve output of the PEEP Valve, you do not have to have an active drive gas supply.
To Test the PEEP Valve the software opens the PEEP valve in increments until the PEEP
valve is completely open.
At each of the settings of the PEEP valve the A/D channel for PEEP DAC
Feedback is recorded.
If the A/D for the Flow DAC Feedback is not within the correct tolerance the test
fails.
Remarks A failure can be caused either by the control circuit or a PEEP Valve malfunction.
To check the control circuit,
1. Go to the Valves - Test Tool menu.
2. With the PEEP Valve set to Off, the PEEP Valve Volts should read near 0.000
Volts.
3. If the reading is high (~ 6 Volts), the control circuit for the PEEP Valve is open or the
PEEP Valve is defective.
4. Measure the resistance between the open terminals of the PEEP Valve (blue). A
multimeter should read 10 1 ohm.
Remarks A failure can be caused either by the control circuit or a PEEP Safety Valve malfunction.
To check the control circuit,
1. Go to the Valves - Test Tool menu.
2. Set the PEEP Safety Valve to Open and listen for a click in the area of the
pneumatic engine.
3. If you do not hear a click each time the PEEP Safety Valve is opened, the control
circuit to the PEEP Safety Valve is open or the PEEP Safety Valve is defective.
4. Measure the resistance between the open terminals of the PEEP Safety Valve
(white). A multimeter should read 10 1 ohm.
4.10.13 You can estimate how much of a leak there is in the ventilator portion of the breathing
Breathing System system by closing the patient circuit, inflating the bellows, and observing how quickly
Leak Test they fall on their own weight (part of machine checkout procedure).
The Breathing System Leak Test allows you to more precisely test the ventilator portion
of the breathing system for leaks.
Remarks By using the patient circuit to establish a closed loop, you can measure the leak rate.
The leak rate is the fresh gas flow needed to maintain 30 cm H 2O.
The system should have a leak rate < 200 mL/min.
4.10.14 The airway pressure limit circuit should trip at approximately 109 cm H 2O.
Test The Test Pressure Limit Circuit routine:
Pressure Limit
establishes a closed patient airway circuit,
Circuit
increments the pressure in the airway circuit,
observes the output of the airway pressure transducer,
notes at what pressure the pressure limit circuit trips.
Test setup 1. Remove the ABS breathing system from the machine.
2. Remove the Exhalation Valve.
3. Separate the Bellows Module from the Circuit Module.
4. Install the Circuit Module only.
5. Set the Bag/Vent switch to Vent.
6. Attach a patient circuit tube to the Calibrated Flow Orifice test tool.
Note: The Calibrated Flow Orifice for the Aespire has the same orifice size as the
Calibrated Flow Orifice for the Aestiva; however, the Aestiva orifice has a larger
outside dimension that does not fit through the Vent Engine cover plate. To use the
Aestiva orifice with an Aespire machine, you must remove the cover plate to access
the manifold port.
Calibrated Flow Orifice
1504-3016-000 7. Insert the Calibrated Flow Orifice into the manifold (PEEP) port.
for the Aespire machine
8. Connect the open end of the patient circuit tube to the inspiratory flow patient
connection.
Test Procedure 1. Select Start Test Pressure Limit Circuit to start the test.
If the Test Pressure Limit Circuit trip point is approximately 109 cm H 2O,
the test passes.
1572QA1
Remarks Select each digit in the Enter Key to Install Upgrade(s): field and rotate the control
knob to select the corresponding digit in the Key Code.
When you have entered all the digits, select Confirm Key And Upgrade.
After verifying the Key Code match to the Control Board ID, the menu will display the
newly installed features.
Note If the ventilator Key Code is changed, the new code should be recorded on the
display module rear panel label.
w WARNING After adjustments and calibration are completed, always perform the checkout
procedure. Refer to Section 3 of this manual.
In this section This section covers calibration procedures for components of the Aespire anesthesia
machine.
5.1 Primary Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
5.1.1 Test setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
5.1.2 Testing Primary Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
5.1.3 Adjusting Primary Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
5.2 Secondary Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
5.2.1 Testing/Adjusting Secondary Regulators or Balance Regulators . . . . . . . . . . . . . .5-7
5.3 Flowmeter Needle Valve Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
5.3.1 O2 Needle Valve Calibration (Minimum Flow) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5.3.2 N2O Needle Valve Calibration (Minimum Flow). . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
5.3.3 Air Needle Valve Calibration (Minimum Flow) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
5.4 Link system calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
5.5 O2 Flush Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
5.6 Airway pressure gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
5.6.1 Zero the pressure gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
5.6.2 Checking the pressure gauge accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
w WARNING When testing/adjusting N2O regulators, nitrous oxide flows through the
system. Use a safe and approved procedure to collect and remove it.
w WARNING Wear safety glasses while test device is connected to the test port.
w CAUTION Be careful not to plug the output of the primary regulator without having
a pressure relief valve in the output circuit.
1. Set the system switch to Standby.
2. Disconnect all pipeline supplies.
3. Remove the upper rear panel (Section 9.2).
For 3rd gas cylinder regulators, also remove the lower rear panel.
4. If equipped, turn the auxiliary O2 flowmeter control fully clockwise (no flow).
5. Install a full cylinder in the cylinder supply to be tested. It is essential that
the cylinder be within 10% of its full pressure.
6. Remove the plug from the test port and connect a test device capable of
measuring 689 kPa (100 psi).
Remove Plug
5.1.2 Testing Primary There are two variations of the test procedure for the primary regulators:
Regulators Test A For primary regulators that supply drive gas to the ventilator.
Test B For all gases not used to supply drive gas to the ventilator.
Test A For primary regulators that supply drive gas to the ventilator (O 2 or Air):
Under low flow conditions, the output pressure of a properly adjusted/
functioning regulator should fall within specifications listed in step 4. Under
high flow conditions, the output pressure should not drop below the
specifications in step 12.
1. Remove the bellows assembly.
2. Slowly open the cylinder valve.
3. Set the system switch to On.
4. Low Flow Test: Set the fresh gas flow to 0.05 L/min (or minimum flow for
O2). When checking an Air regulator on systems that have a single
flowtube, open the needle valve 1/8 turn from the minimum stop to
achieve a flow close to 0.05 L/min.
Close the cylinder valve and allow the pressure to decay to 2068 kPa
(300 psi) as indicated on the cylinder gauge (upper limit of the red band).
The flow may be temporarily increased to facilitate the decay.
At the time that the cylinder pressure reaches 2068 kPa (300 psi), set
the system switch to Standby.
Within one minute, the test device must stabilize between:
(60) DIN 372400 kPa (5458 psi)
(50) Pin Indexed 310341 kPa (45.049.5 psi).
- If the test device pressure does not stabilize within one minute,
replace the cylinder supply.
- If the test device stabilizes within one minute, but the readings are
not within specifications, readjust the regulator (Section 5.1.3).
5. Slowly open the cylinder valve.
6. Enter the Service Mode:
(Push and hold the adjustment knob on the ventilators display and set the
system switch to On.)
7. Select and confirm Service Modes.
8. Follow the menu structure outline below to reach the adjustment for the
inspiratory flow valve. Select and confirm at each step.
Diagnostics Tests/Tools
Valves - Test Tool
Set Inspiratory Valve
Test B For all gases not used to supply drive gas to the ventilator:
Under low flow conditions, the output pressure of a properly adjusted/
functioning regulator should fall within specifications listed in step 4. Under
high flow conditions, the output pressure should not drop below the
specifications in step 7.
1. If the cylinder supply being tested is N2O, connect a source of O2 and set
the O2 flow control to the minimum stop (pilot pressure for secondary
regulator).
2. Slowly open the cylinder valve for the regulator being tested.
3. Set the system switch to On.
4. Low Flow Test: Set the flow of the gas being tested to 0.05 L/min (or
minimum flow for O2). When checking a regulator on systems that have a
single flowtube, open the needle valve 1/8 turn from the minimum stop to
achieve a flow close to 0.05 L/min.
Close the cylinder valve and allow the pressure to decay to 2068 kPa
(300 psi) as indicated on the cylinder gauge (upper limit of the red band).
The flow may be temporarily increased to facilitate the decay.
At the time that the cylinder pressure reaches 2068 kPa (300 psi), set
the system switch to Standby.
Within one minute, the test device must stabilize between:
(60) DIN 372400 kPa (5458 psi)
(50) Pin Indexed 310341 kPa (45.049.5 psi).
- If the test device pressure does not stabilize within one minute,
replace the cylinder supply.
- If the test device stabilizes within one minute, but the readings are
not within specifications, readjust the regulator (Section 5.1.3).
5. Slowly open the cylinder valve.
6. Set the system switch to On.
7. High Flow Test: Set the flow control valve to the maximum indicated flow
on the flow tube.
The test device reading must be greater than:
(60) DIN 221 kPa (32 psi)
(50) Pin Indexed 221 kPa (32 psi)
- If the test device reading under high flow conditions is less than
specified, readjust the regulator per the procedure in Section 5.1.3;
however, set the regulated pressure higher by the difference you
noted in this step plus 7 kPa (1 psi). This adjusts the low flow
regulated output to the high side of the specification so that the
high flow regulated pressure can fall within the specification.
- If the regulator subsequently fails the low flow specification
(step 4) because the reading is too high, replace the cylinder supply.
8. Set the system switch to Standby.
9. Close the cylinder valve.
10. Bleed the system of all pressure.
11. Disconnect the test device and plug the test port (pull on the plug to
ensure it is locked in the fitting).
12. Replace the rear panel(s).
13. Perform the checkout procedure (Section 3).
5.1.3 Adjusting Primary Important: Cylinder supplies in an Aespire machine must have all primary
Regulators regulators set to the same pressure range: (50) Pin Indexed or (60) DIN. If a
regulator is replaced, the replacement regulator must be set (as required) to
the same specification as the one removed.
Important: Install a full cylinder in the cylinder supply to be adjusted. It is
essential that the cylinder be within 10% of its full pressure.
If the cylinder supply being adjusted is N2O, connect a source of O2 and set
the O2 flow control to the minimum stop (pilot pressure for secondary
regulator).
To adjust the primary regulators, follow the procedure in Section 5.1.1 to gain
access to the regulators.
Test Ports
4. Set the flow of the tested gas and of O2 as detailed in the chart.
5. Verify that the output of the tested regulator is within the range listed in the
chart.
w CAUTION: Do not force the needle valve against the seat. Overtightening the valve
can cause the minimum flow setting to drift out of specifications.
1. Set the system switch to Standby.
2. Remove the flowmeter panel shield (Section 9.7.1).
Note: If adjusting an existing needle valve,
remove the N2O and O2 knob and sprocket assemblies
(on machines with O2 only flowhead, remove the O2 knob),
and loosen the O2 stop collar setscrews.
3. Slide a stop collar onto the valve stem with the stop tab toward the valve.
Do not tighten setscrews.
Stop
Valve Stop Tab
Stop Collar Tab
Valve Stem
7. Turn the collar clockwise until the collar stop tab contacts the minimum
stop tab on the valve body. Do not turn the valve stem.
Collar Stop
Valve
Stop
Collar
Collar stop must be on
CCW side of valve stop.
8. Carefully pull the collar back so there is a slight gap between collar and the
valve body (but still engages the valve stop).
Collar Gap
Setscrew
(example)
9. Tighten the collar setscrews. Start with the one opposite the tab if possible.
10. Turn the valve stem counterclockwise at least one revolution to make sure
the collar tab clears the valve stop.
Stop must clear
w WARNING You must be in a well ventilated room or use a gas evacuation device at
this time. Anesthetic vapors exhausted into the room air can be harmful
to your health.
w CAUTION: Do not force the needle valve against the seat. Overtightening the valve
can cause the minimum flow setting to drift out of specifications.
1. Disconnect all pipeline supplies and close all cylinder valves.
2. Remove the upper rear panel.
Note: If adjusting an existing needle valve,
remove the N2O and O2 knob and sprocket assemblies,
and loosen the O2 stop collar setscrews.
3. Remove the flowmeter panel shield (Section 9.7.1).
4. Disconnect the tube from the pilot port on the N2O regulator.
5. Disconnect the 4-mm outlet tube from the back of the N2O pipeline
manifold.
Connect to
N20 pilot port
7. Slide a stop collar onto the valve stem with the stop tab toward the valve.
Do not tighten setscrews.
Stop
Valve Stop Tab
Stop Collar Tab
Valve Stem
Float
N2O
Filter
11. Disconnect the tubing from the inlet of the vaporizer manifold (closest to
flowhead).
12. If the machine has an Air option, bleed down the air supply. Air can inflate
the bubble (next step) if it is not shut off.
13. Apply a small amount of leak detection fluid (Snoop) to the end of the tube
to form a bubble.
14. Turn the valve stem clockwise until the bubble no longer inflates. Do not
turn more than 10 degrees clockwise past this point.
10 degrees
N2O
16. Turn the collar clockwise until the collar stop tab contacts the minimum
stop tab on the valve body. Do not turn the valve stem.
Collar Stop
Valve
Stop
17. Carefully pull the collar back so there is a slight gap between collar and the
valve body (but still engages the valve stop).
Collar
Gap
Setscrew
(example)
18. Tighten the collar setscrews. Start with the one opposite the tab if
possible.
19. Turn the valve stem counterclockwise at least one revolution to make sure
the collar tab clears the valve stop.
Stops must clear
N2O O2
w CAUTION: Do not force the needle valve against the seat. Overtightening the valve
can cause the minimum flow setting to drift out of specifications.
1. Set the system switch to Standby.
2. Disconnect all pipeline hoses and close all cylinder valves except for air.
3. Remove the flowmeter panel shield (Section 9.7.1).
4. Remove the upper rear panel.
Note: If adjusting an existing needle valve,
remove the Air knob,
and loosen the Air stop collar setscrews.
5. Slide a stop collar onto the valve stem with the stop tab toward the valve.
Do not tighten setscrews.
Stop
Valve Stop Tab
Stop Collar Tab
Valve Stem
Float
Air
Filter
8. Disconnect the tubing from the inlet to the vaporizer manifold (left end of
manifold).
9. Apply a small amount of leak detection fluid (Snoop) to the end of the tube
to form a bubble.
10. Turn the needle valve clockwise until the bubble no longer inflates. Do not
turn more than 10 degrees clockwise past this point.
10 degrees
Air
12. Turn the collar clockwise until the collar stop tab contacts the minimum
stop tab on the valve body. Do not turn the valve stem.
Collar Stop
Valve
Stop
Collar
Collar stop must be on
CCW side of valve stop.
13. Carefully pull the collar back so there is a slight gap between collar and the
valve body (but still engages the valve stop).
Collar
Gap
Setscrew
(example)
14. Tighten the collar setscrews. Start with the one opposite the tab if
possible.
15. Turn the valve stem counterclockwise at least one revolution to make sure
the collar tab clears the valve stop.
Stops must clear
w WARNING You must be in a well ventilated room or use a gas evacuation device at
this time. Anesthetic vapors exhausted into the room air can be harmful
to your health.
1. Set the system switch to Standby.
2. Remove the flowmeter panel shield (Section 9.7.1).
3. Put the plastic spacer on the N2O needle valve spindle.
4. Turn the O2 and the N2O needle valves clockwise to their minimum stop
position.
Spacer
5. Put the chain onto the O2 knob/sprocket assembly and the N2O sprocket.
Note: The N2O sprocket set screws should be away from the valve.
6. Install the chain and sprockets onto the needle valve stems as an
assembly. Press the O2 knob/sprocket against the O2 minimum stop
collar.
Sprocket/Chain
Assembly
7. Tighten the setscrews in the O2 knob. Do not tighten the N2O sprocket
setscrews.
Note: If O2 label is on the knob, turn the knob so that the identification label
is horizontal before tightening the setscrews.
8. Turn on the O2 and the N2O gas supplies (pipeline or cylinder).
9. Set the system switch to On.
10. Adjust the needle valves:
O2 needle valve: 200 10 mL/min.
N2O needle valve: 600 25 mL/min.
Turn
counter-
clockwise
13. Holding the O2 knob, rotate the N2O sprocket counterclockwise until all
slack is removed from the chain.
14. Lightly tighten both N2O sprocket setscrews.
15. Turn the N2O needle valve clockwise to the minimum stop position.
16. Install the N2O knob. Turn the knob so that the identification label is
horizontal before tightening the setscrews.
17. Turn the N2O needle valve counterclockwise, and check that the oxygen
flow increases as N2O flow increases.
18. Turn the O2 needle valve clockwise, and check that the N2O flow
decreases as O2 decreases.
19. Check the proportioning system concentration (increasing N 2O flow).
Observe the following precautions:
Start with both valves at the minimum setting.
Adjust only the N2O needle valve.
Increase the N2O flow as specified in the table below and make sure the
O2 concentration is in the allowed range.
Note: Allow the O2 monitor to stabilize. At the lower flows, the O2 monitor
may take up to 90 seconds to stabilize.
If you overshoot a setting, turn the O2 needle valve clockwise until the
N2O flow decreases to the previous setting before continuing the test.
1 22% to 29%
2 22% to 29%
6 22% to 29%
9 22% to 29%
3 22% to 29%
2 22% to 29%
1 22% to 29%
If both tests meet the criteria, calibration is complete (go to the next step).
If either test fails to meet the criteria, return to step 10 and adjust N 2O to
a lower or higher setting.
If: Then:
Concentration Low Decrease N2O
Concentration High Increase N2O
Jam nut
Adjustment screw
5.6.1 Zero the pressure 1. Attach a patient circuit to the Breathing System. Leave the patient end
gauge open.
2. Set the Bag/Vent switch to Bag.
3. Adjust the APL valve to maximum.
4. Remove the lens from the pressure gauge:
Apply a slight pressure with your thumb and finger tips around the outer
edge of the lens.
Turn the lens counterclockwise to remove it.
5. Adjust the pressure gauge to zero.
6. Plug the patient circuit.
7. Press and release the O2 flush button to sweep the needle across the
pressure gauge.
8. Remove the plug from the patient circuit to relieve the pressure in the circuit
and recheck the zero setting of the pressure gauge.
9. If required, repeat zero and span procedure.
10. Replace the lens cover.
Zero Adjust
5.6.2 Checking the The accuracy of the airway pressure gauge can be checked by using the
pressure gauge accuracy following:
a low-pressure test device (digital manometer or test gauge) with an
accuracy of 2% of reading,
a low-pressure supply source (typically a syringe),
and an airway pressure gauge test adapter.
To
Test Device
To
Low-pressure Source
(Syringe)
To
Pressure Gauge Fitting
In this section This section covers the regular maintenance procedures (minimum requirements)
needed to make sure that the Aespire Anesthesia Machine including the ventilator
operates to specifications.
6.1 Aespire 7100 Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
6.2 Aespire 7100 Planned Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
6.2.1 Every twelve (12) months . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
6.2.2 Every twenty-four (24) months . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5
6.3 Free breathing valve maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
6.4 MOPV pressure relief valve test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
6.4.1 Test setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
6.4.2 Test procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
6.5 Auxiliary O2 flowmeter tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8
6.6 Integrated Suction Regulator tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-9
w WARNINGS Do not perform testing or maintenance on the Aespire Anesthesia Machine while
it is being used on a patient. Possible injury can result.
Obey infection control and safety procedures. Used equipment may contain
blood and body fluids.
6.2.1 Every twelve (12) Perform the following steps every 12 months.
months For details, refer to the sections listed.
Parts Replacement
Replace the vaporizer port o-rings (Section 9.8.1)
(Kit Stock Number 1102-3016-000)
Machine Checks and Tests Refer to the Aespire Users Reference Manual, Part 2.
Perform the following steps:
1. User maintenance listed below. Including disassembly, inspection,
cleaning and parts replacement as required (Section 3 and Section 2).
AGSS Maintenance:
Empty any condensate from the reservoir (disposable item).
Inspect air brake for occlusion.
Inspect, clean or replace filter on active AGSS.
Breathing Circuit Maintenance
Bellows Assembly Maintenance
Bellows Assembly Tests
O2 Sensor Calibration
Flow Sensor Calibration
Refer to listed sections in this manual.
Perform the following steps:
1. MOPV pressure relief valve test (Section 6.3)
6.2.2 Every twenty-four In addition to the 12-month requirements, replace the following parts every
(24) months 24 months. All machine and ventilator parts should be replaced before
performing the checks, tests, and calibrations.
1. Replace the internal backup battery (Section 7.2.3)
(Stock Number 1504-3505-000).
2. Replace the free breathing flapper valve (Section 6.2)
(Stock Number 0211-1454-100).
3. Replace the free breathing valve o-ring (Section 6.2)
(Stock Number 1503-3208-000).
C B
1. Unscrew the valve seat (A) from the side of the interface manifold.
2. Inspect the flapper (B) and valve seat for nicks, debris and cleanliness.
To replace the flapper valve 3. If necessary, clean the new flapper valve with alcohol.
4. Pull the tail (C) of the new free breathing valve flapper through the center
of the valve seat until it locks in place.
5. Trim the tail flush with outside surface of the valve seat (refer to the
removed flapper).
2. Plug the inspiratory flow (drive pressure) port of the exhalation valve with a
stopper.
Exhalation valve
6.4.2 Test procedure 1. Set the system switch to On and enter the Service Mode.
4. Carefully listen for the MOPV relief weight to be relieving and popping off
from its seat (a purring sound). This indicates the valve is functioning
correctly.
Flow Accuracy Test Note: To check flow accuracy, be sure that the flow test device is capable of
measuring 0 to 15 L/min with an accuracy of 2% of reading.
1. Connect the flowmeter outlet to the flow test device.
2. Adjust the flowmeter so the center of the ball aligns with the selected test
point (observe that the ball maintains a steady position for 10 seconds).
3. The test device reading should be between the limits shown for each of the
selected settings in the table below.
Gauge Accuracy The gauge needle should come to rest within the zero range bracket when no
suction is being supplied. Gauges which do not comply may be out of
tolerance.
Note To check gauge accuracy, be sure that the test gauge is capable of measuring
0 to 550 mm Hg with an accuracy of 1% of reading.
1. Connect the suction patient port to the test gauge.
2. Turn the mode selector switch to I (ON).
3. Ensure that the vacuum test gauge is in agreement with the suction vacuum
gauge 38 mm Hg/5 kPa at the following test points.
Test points
Suction vacuum gauge Test gauge tolerance
100 mm Hg (13.3 kPa) 62138 mm Hg (8.318.4 kPa)
300 mm Hg (40 kPa) 262338 mm Hg (3545 kPa)
500 mm Hg (66.7 kPa) 462-538 mm Hg (61.671.7) kPa)
Flow Test Note: To check flow accuracy, be sure that the flow test device is capable of
measuring 030 L/min.
1. Connect the patient port of the suction regulator to the flow test device.
2. Rotate the suction control knob fully clockwise (increase).
3. Turn the mode selector switch to I (ON) and verify that the flow rate is:
at least 20 L/min.
4. Disconnect the test flowmeter.
Vacuum Bleed Test 1. Occlude the patient port of the suction regulator.
2. Set the vacuum regulator gauge to 100 mm Hg/13 kPa.
3. Turn the mode selector switch to O (OFF) and observe the gauge needle. It
must return to the zero range bracket or stop pin within 10 seconds.
w WARNING Objects in the breathing system can stop gas flow to the patient. This can cause
injury or death:
Do not use a test plug that is small enough to fall into the breathing system.
Make sure that there are no test plugs or other objects caught in the
breathing system.
7.2.1 Breathing This test checks for leaks in Vent Mode and Bag Mode components. It is part of the
system leak test overall checkout procedure, Section 3.11 Breathing system tests. It is repeated here
for testing convenience.
w WARNING Objects in the breathing system can stop gas flow to the patient. This can cause
injury or death:
Do not use a test plug that is small enough to fall into the breathing system.
1. Verify that AGSS is operating. For systems that have a flow indicator on the side,
make sure that the flow indicator shows a flow in the green (normal) region.
2. Zero the pressure gauge (Section 5.6.1).
Check Valves 3. Make sure that the check valves on the breathing circuit module work correctly:
a. The Inspiratory check valve rises during inspiration and falls at the start of
expiration.
b. The Expiratory check valve rises during expiration and falls at the start of
inspiration.
w WARNING Make sure that there are no test plugs or other objects caught in the
breathing system.
7.2.2 Breathing
System
Troubleshooting
Flowcharts
Start
Pass
Leak in
Bag Vent
AB.74.042
Bag Mode,
Go to Flowchart 2 Mode Vent Mode, Mode Go to Flowchart 3
only or Both? only
Pass
Go to Flowchart 4
Flowchart 1
M1110140 08/07 7-7
Aespire 7100
Leak in
Bag Mode only
Perform Test 4
Testing the bag port,
APL Valve, and Bag/Vent Pass
Switch, and Negative
Pressure Relief Valve
AB.74.043
components and repeat
Fail Breathing System Leak Test
(Section 7.2.1)
No
Fail
Inspect
APL/BTV Manifold O-Ring seal
and Negative Pressure Relief;
replace as necessary.
Replace APL components
and repeat Test 4.
If test fails the second time,
inspect APL component;
replace as necessary.
Flowchart 2
7-8 08/07 M1110140
7 Troubleshooting
Leak in
Vent Mode only
Perform Test 6
Pass Testing the bellows assembly,
and Bag/Vent Switch
Perform Test 8
AB.74.044
Testing the bellows and Inspect Exhalation Valve
bellows Pop-off and Drive Circuit
Fail
Pass
Perform Test 7
Testing the Bag/Vent Switch,
Negative Relief Valve,
Bellows Base Manifold, Pass
bellows and Pop-off Valve
Fail
Perform Test 8
Pass Testing the bellows and
bellows Pop-off
Check/Replace:
Pop-off diaphragm,
Bellows Housing,
U-Cup seal,
and Bellows integrity
Flowchart 3
M1110140 08/07 7-9
Aespire 7100
Perform Test 9
Fail Testing the Flow Sensor Pass
Module, Circuit Module, and
Soda Lime Canister
AB.74.045
Pressure Relief, Check/Replace the following
Testing the Flow Testing the Circuit Bag/Vent parts:Upper Seal,
Sensors, Bulkhead Module Bag/Vent Cartridge
O-Rings Disk, and O-Ring
connectors and tubing
Pass Fail
Pass Fail
Flowchart 4
7-10 08/07 M1110140
7 Troubleshooting
Leak in
Flow Sensor Module
or Circuit Module
Check/Replace
Check/Replace the seals
AB.74.048
Flow Sensors or
bulkhead connector on the Circuit Module and
O-Rings the O-Ring on the O2 cell
Flowchart 5
M1110140 08/07 7-11
Aespire 7100
7.2.3 Leak The previous flowcharts refer you to the following tests.
Isolation Tests These tests require the use of the Low Pressure Leak Test Device and the Leak Test Tool
Kit (refer to Section 10.1.3, "Test Tools".
The Leak Test Tool Kit includes:
the Machine Test Tool
the Circuit Test Tool
and various Test Plugs
When performing these tests, ensure that the ACGO selector switch is set to the ABS
position.
Test 1: Verifying the integrity of the test tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
Test 3: Testing the airway pressure gauge, and Port 1 and Port 3 u-cup seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15
Test 4: Testing the bag port cover, the APL valve, the Bag/Vent switch, and the negative pressure relief valve . . . . . . . . . 7-16
Test 6: Testing the bellows module and the Bag/Vent switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
Test 7: Testing the bellows, the bellows pop-off valve, the bellows base manifold, and the Bag/Vent switch. . . . . . . . . . . 7-19
Test 9: Testing the flow sensor module, the circuit module, and the soda lime canister . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21
Test 10: Testing the circuit module and the canister . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
Test 11: Testing the circuit module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
Test 12: Testing the inspiratory side of the circuit module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23
Test 13: Testing the negative pressure relief valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
Test 14: Testing the flow sensors only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Test 15: Testing a flow sensor including the Ventilator Monitoring Assembly and interfacing components . . . . . . . . . . . . . . 7-26
w WARNING Objects in the breathing system can stop gas flow to the patient. This can cause
injury or death:
Do not use a test plug that is small enough to fall into the breathing system.
Make sure that there are no test plugs or other objects caught in the
breathing system.
w CAUTION Do not use O2 Flush for leak isolation tests. Do not leave pressurized systems
unattended. High pressure and equipment damage may result.
Pressure Sense
Port
Airw
ay P
ath
Alignment Post
Back View
ath
ay P
Airw
Alignment Post
2. Attach the low-pressure leak test device to the Machine Test Tool.
3. Plug the two pressure orifices.
4. Repeatedly squeeze and release the hand bulb until it remains collapsed.
5. If the bulb inflates in less than 30 seconds, locate and correct the leak.
Port 1
Test 3 Testing the airway pressure gauge, and Port 1 and Port 3 u-cup seals
Alignment
Post
1. Attach the Machine Test Tool to the breathing system interface ports (using the
alignment post) as shown above.
2. Turn all of the flow controls fully clockwise (minimum flow).
3. Set the system switch to On.
4. Occlude the tapered plug.
At minimum flow, the airway pressure gauge reading should increase.
If not, there is a leak in the tested circuit.
Test 4 Testing the bag port cover, the APL valve, the Bag/Vent switch, and the
negative pressure relief valve
Plug
Bag Port
1. Separate the Bellows Module from the Circuit Module and re-install the Bellows
Module.
2. Occlude the Bag Port connector.
3. Connect the Machine Test Tool to the interface ports as shown above.
4. Set the Bag /Vent switch to Bag and close the APL Valve (70 cm H 2O).
5. Slowly increase the O2 flow to achieve 30 cm H2O.
The leak rate is equal to the flow needed to maintain 30 cm H 2O.
The leak rate should be less than 200 mL/min.
Note: If the bellows rises, it indicates a leak in the Bag /Vent Switch.
Plug
APL
Scavenging
Port
Plug
Bag Port
Note If required, set up the Machine Test Tool and breathing system as shown in Test 4.
1. Slide the Bellows Module away from the machine.
2. Remove the APL ramp and diaphragm.
3. Insert a Test Plug into the APL scavenging port, as shown above.
4. Slide the Bellows Module partially back onto the machine casting.
5. Ensure that the Bag Port is plugged and that the Bag/Vent switch is set to Bag.
6. Slowly increase the O2 flow to achieve 30 cm H2O.
Leak rate is equal to the flow needed to maintain 30 cm H 2O.
The leak rate should be less than 200 mL/min.
1. Separate the Bellows Module from the Circuit Module and re-install the Bellows
Module.
2. Enter the Service Mode: Push and hold the adjustment knob on the ventilators
display and set the system switch to On.
a. Select and confirm Service Modes.
b. Follow the menu structure outline below to reach the adjustment for the
inspiratory flow valve. Select and confirm at each step.
Diagnostics Tests/Tools
Breathing System Leak Test
3. Follow the instructions on the screen.
At step 5, connect the Machine Test Tool to the interface ports as shown above,
instead. Continue with steps 6 and 7 on the screen.
The leak rate should be less than 200 mL/min.
Test 7 Testing the bellows, the bellows pop-off valve, the bellows base
manifold, and the Bag/Vent switch
Note If required, set up the Machine Test Tool and breathing system as shown in
Test 7.
Test 9 Testing the flow sensor module, the circuit module, and the soda lime
canister
Plug
1. Separate the Bellows Module from the Circuit Module and re-install the Circuit/Flow
Sensor Module.
2. Connect short tubing between the inhalation and exhalation ports of the breathing
system.
3. Insert an appropriate test plug in the outlet port of the Circuit Module.
4. Enter the Service Mode: Push and hold the adjustment knob on the ventilators
display and set the system switch to On.
a. Select and confirm Service Modes.
b. Follow the menu structure outline below to reach the adjustment for the
inspiratory flow valve. Select and confirm at each step.
Diagnostics Tests/Tools
Display A/D Channels
c. Record the Inspiratory and Expiratory Flow actual values.
Note: The Inspiratory and Expiratory Flow actual values should be near zero.
5. Slowly increase the O2 flow to achieve 30 cm H2O.
The leak rate is equal to the flow needed to maintain 30 cm H 2O.
The leak rate should be less than 200 mL/min.
6. Observe the Inspiratory and Expiratory Flow actual values. The values should be near
zero, as previously recorded in step 4.
Note: If one channel indicates flow, see Inaccurate Volume Ventilation
Troubleshooting in the 7100 Ventilator Service Manual.
7. Release Pressure.
Plug
Plug
Plug
Plug
Loop
Plug
AB.23.115
Note: To ensure a air-tight
seal, use the corresponding
plug as illustrated for the
original flow sensor (A)
or the new,
moisture resistant
(offset) flow sensor (B).
B
AB.82.069
Test 15 Testing a flow sensor including the Ventilator Monitoring Assembly and
interfacing components
AB.82.070
Note: To ensure a air-tight
seal, use the corresponding
plug as illustrated for the
original flow sensor (A)
or the new,
moisture resistant
(offset) flow sensor (B).
B
AB.82.068
Troubleshooting Some ventilator problems may not generate any ventilator messages, even though the
instructions ventilator may not be functioning correctly:
Refer to Section 7.3, "Troubleshooting guide."
For ventilator problems that result in an Alarm or Error message:
Refer to Section 7.4, "Alarm and Error messages."
To help isolate a problem:
Refer to Section 7.5, "Troubleshooting Flowcharts."
The LED is powered by the +6V supply from the universal power supply. Turn system switch to On. If ventilator operates from the
backup battery, check 1 and 2. If ventilator operates from line power, check 3 and 4.
(The problem is most likely 3. Serial Isolation Connector Board (SICB) 3. Replace SICB.
somewhere between
the system switch and
the control board.)
Turning the system switch to On should pull the Rem_On signal low on the control board. The above actions verifies the integrity of
the Rem_On signal path. First, jumper pins 8 and 15 of J11 on control board to verify that the control board itself is OK.
Error Message If a User Alarm persists after the recommended action has been performed, the
message indicates the probable component and related circuit that needs repair. Use
the Service Mode tests to isolate the fault. The items in the Service Repair column
indicate the path from the named component to the control board.
12 Hour Test w User Alarm System in use for more than At end of case, move the system
12 hours without a switch from On to Standby to
powerup self test. On.
Absorber Panel Open User Alarm The top panel on Aestiva is Close the panel. If persists, check:
not completely closed. Panel switch
ABS on Aespire in not Reinstall ABS. Harness to VMB
completely engaged. VMB
Cable to CB/J12
Apnea Alarm User Alarm Normal condition after End Monitoring resumes after first
Standby Case, powerup, or ACGO breath (mechanical) or 2
change from On to Off. breaths within 30 sec (non-
mechanical).
Apnea Alarm Off User Alarm The cardiac bypass option is Apnea alarms are turned off
selected (Alarm Settings when this option is selected.
menu).
Aux Gas Outlet On User Alarm The outlet selection switch is Connect the patient circuit to the If persists, check:
set to the auxiliary auxiliary outlet. ACGO switch
common gas outlet. For mechanical ventilation or VMB
ventilation with monitoring, Cable to CB/J12
select the common gas outlet.
Battery Charger Fail User Alarm The current in the battery System is operational, but may Replace:
charging circuit is too fail on battery if mains power Battery
high. is lost. Control Board
Battery Charging w User Alarm Battery is not fully charged. Leave the system plugged in to If persists, replace:
charge the battery. If power Battery
fails, the total backup time Control Board
will be < 30 minutes.
Battery Current High User Alarm Battery current > 6 amps for System is operational, but may If persists, replace:
10 seconds. fail on battery if mains power Battery
is lost. Control Board
Battery Failure High User Alarm Battery voltage > 8 V for System is operational, but may If persists, replace:
10 seconds. fail on battery if mains power Battery
is lost. Control Board
Battery Failure Low User Alarm The battery voltage is too low System is operational, but may If persists, replace:
(< 2 V) to supply the fail on battery if mains power Battery
system if power fails. is lost. Control Board
Leave the system plugged in to
charge the battery.
Cal Flow Sensors User Alarm The last flow sensor Calibrate the flow sensors. This alarm message
calibration failed. Look for water in the flow sensor indicates that the
tubes and dry if necessary. last flow sensors
Replace sensor if necessary. differential
pressure
transducer
calibration failed.
With the BTV switch
in Bag, ensure
sensors are
removed until the
No Insp / No Exp
flow Sensor
messages appear.
If persists, replace:
VMB
Control Board
Calibrate O2 Sensor User Alarm Calibration failure or Does the sensor measure If persists, Check:
O2% >110% 21% O2 in room air? O2 sensor cable
Replace sensor if necessary. VMB
Cable to CB/J12
Canister Open User Alarm The canister release is open, Close the canister release. If persists, check:
causing a large leak Canister switch
(Aestiva only). Harness to VMB
(Closed by default in Aespire VMB
machine.) Cable to CB/J12
Cardiac Bypass User Alarm The alarm limit settings are Use the alarm limits menu to
set for a patient on change this setting.
cardiac bypass.
Apnea alarms are off.
Check Flw Sensors User Alarm System has detected an Are the flow sensors correctly
w improper flow pattern in installed?
the breathing circuit. Water build up in the flow sensor
tubes?
Is a flow sensor tube cracked or
broken?
Improper check valve operation?
Inspect one-way valves.
Replace flow sensor module with
the spare. Check the
condition of the flow sensor
and its tubing.
Circuit Leak Audio User Alarm Control setting on the Alarm This message tells you that the
Off Settings menu. audio alarm for circuit leaks
was turned off.
Connect O2 Sensor User Alarm The O2 sensor is not Connect the sensor. If persists, Check:
connected to the cable. O2 sensor cable
VMB
Cable to CB/J12
Exp Flow Sensor Fail User Alarm System cannot read the Operation continues with
calibration data stored in reduced accuracy.
the sensor. Replace the flow sensor.
Exp Reverse Flow User Alarm Flow through the expiratory Look at the check valves.
sensor during inspiration Water build up in the flow sensor
(for 6 breaths in a row). tubes?
Is a flow sensor tube cracked or
broken?
Replace the expiratory check
valve.
Check the flow sensor condition.
Heliox Mode is On User Alarm Control setting on ventilation When Heliox is used, the
setup menu. ventilator must adjust volume
calculations.
High O2 User Alarm O2% > alarm high limit Is the limit set correctly?
setting. What is the O2 flow?
Did you just push Flush?
Does the sensor see 21% O2 in
room air?
Calibrate O2 sensor.
Replace O2 sensor.
High Paw User Alarm Paw is greater than Plimit. Are Plimit and other controls set
The ventilator cycles to correctly?
expiration. Look for blockages.
Check patient connection.
High E User Alarm The minute volume is greater Check patient for spontaneous
than the set high limit. breathing.
This alarm is suspended Adjust control settings.
for 9 breaths after you
change the ventilator
settings.
High VTE User Alarm VTE is greater than high alarm Check patient for spontaneous
limit. This alarm is breathing.
suspended for 9 breaths Check ventilator and alarm
after you change the settings.
ventilator settings.
Insp Flow Sensor Fail User Alarm The system cannot read the Operation continues with
calibration data stored in reduced accuracy.
the sensor. Replace the flow sensor.
Insp Reverse Flow User Alarm Flow through the inspiratory Look at the check valves.
sensor during expiration Water build up in the flow sensor
(for 6 breaths in a row). tubes?
Is a flow sensor tube cracked or
broken?
Replace the inspiratory check
valve.
Check the flow sensor condition.
Inspiration Stopped User Alarm Drive gas safety switch Adjust controls. If persists, check:
w activated (high pressure). Check systems for blockages. Bellows pop-off
Exhalation valve
Invalid User Alarm The system does not Make sure the module is If persists, check:
Circuit Module recognize the type of correctly installed. Circuit
circuit module installed. Look for broken ID tabs or tape Identification
Normally the system uses on the tabs. Board
the ID tabs to identify Harness to VMB
circuits. VMB
Cable to CB/J12
Low Battery Voltage User Alarm Voltage is <5.65V while Manually ventilate the patient to
using battery power. save power.
Is the mains indicator light on?
Make sure power is connected
and circuit breakers are
closed.
Check the ventilator fuse.
Low Drive Gas Press User Alarm The ventilator does not Manually ventilate the patient.
detect supply pressure. Make sure that the appropriate
gas supplies (O2 or Air) are
connected and pressurized.
Low O2 User Alarm O2% less than alarm low Is the limit set correctly?
limit setting. Is the O2 flow sufficient?
Does the sensor see 21% O2 in
room air?
Calibrate O2 sensor.
Replace O2 sensor.
As sensors wear out, the
measured % O2 decreases.
Low Paw User Alarm Paw does not rise at least Are circuit connections OK?
4 cm above Pmin during Look at the Paw gauge on the
the last 20 sec. absorber.
Look for circuit disconnection.
Low VTE User Alarm Exhaled tidal volume Check patient condition.
less than low limit alarm Check tubing connections.
setting. This alarm is Check alarm settings.
suspended for 9 breaths
after you change the
ventilator settings.
Memory (EEPROM) User Alarm The system cannot access Default settings are used. Replace:
Fail some stored values. Ventilation is still possible but Control Board.
service is necessary.
Monitoring Only User Alarm A severe malfunction Ventilate manually. Cycle system Replace:
prevents mechanical power (On- Standby-On). Control Board.
ventilation. If the alarm clears, restart
Other alarms may also mechanical ventilation.
occur.
No Circuit Module User Alarm The patient circuit module is Install a module. If persists, check:
not installed Optical sensors look for tabs on Circuit
(Aestiva only). the back of the module. Identification
Is the module assembled? Board
Are sensors dirty? Harness to VMB
VMB
Cable to CB/J12
No Exp Flow Sensor User Alarm Electrical signals show the Connect the flow sensors.
flow sensor is not Make sure the flow sensor
connected. module is on all the way.
No Insp Flow Sensor User Alarm Electrical signals show the Connect the flow sensors.
flow sensor is not Make sure the flow sensor
connected. module is on all the way.
No O2 Pressure User Alarm The O2 supply has failed. Air flow will continue. Ventilate
manually if necessary.
Connect a pipeline supply or
install an O2 cylinder.
O2 Flush Failure User Alarm The pressure switch that This alarm occurs if you hold If persists, check:
detects flush flow has down the Flush button for O2 flush switch
seen a very long flush more than 30 seconds. Cable to SICB
(30 sec). SICB
Cable to CB/J11
O2 Sensor Out of Circ User Alarm O2 sensor not installed in Install a breathing circuit module
breathing circuit module. and an O2 sensor.
Sensor not measuring gas in
breathing circuit.
O2 Mon Disabled User Alarm An Oxygen cell has been The Oxygen Monitoring feature is Service Mode:
connected to a non- not active on this system. System
active ventilator Configurations
monitoring feature.
On Battery - User Alarm The mains supply is not Ventilate manually to save
Power OK? connected or has failed power.
and the system is using At full charge, the battery
battery power. permits approximately
30 minutes of mechanical
ventilation.
Make sure power is connected
and circuit breakers are
closed. Check the ventilator
fuse.
Patient Circuit Leak? User Alarm Exhaled volume <50% of Check breathing circuit and flow
inspired volume for at sensor connections.
least 30 seconds Patient circuit leak audio can be
(mechanical ventilation). turned off in the Alarm
Settings menu.
Paw < -10 cm H2O User Alarm Subatmospheric pressure Check patient condition,
(<-10 cm H2O). spontaneous activity?
Increase fresh gas flow. Look
for high flow through gas
scavenging.
Calibrate the flow sensors. With
active scavenging, check the
negative relief valve on the
receiver.
PEEP Valve (DAC) Error Indicates a failure of the Ventilate manually. Replace:
Failure Minimum control circuit for the Control Board.
Monitoring PEEP Valve.
PEEP Valve (Voltage) Error Indicates a problem with the Ventilate manually. Check/Replace:
Failure Minimum PEEP Valve or the PEEP Valve
Monitoring connections to the PEEP PEEP Valve
Valve. harness
VEB
Cable to CB/J14
Control Board.
PEEP Safety Valve Error Indicates a higher than Ventilate manually. Check/Replace:
(Drive) Failure Minimum allowed current draw on PEEP Safety Valve
Monitoring the PEEP Safety Valve. PEEP Safety Valve
harness
VEB
Cable to CB/J14
Control Board.
PEEP Safety Valve Error Indicates that the powerup Ventilate manually. Check/Replace:
Failure Minimum test of the PEEP Safety PEEP Safety Valve
Monitoring Valve failed. PEEP Safety Valve
harness
VEB
Cable to CB/J14
Control Board.
Pinsp Not Achieved User Alarm Indicates a problem with Check breathing circuit
breathing circuit connections. Check settings.
connections or that the
ventilator is unable to
deliver requested
pressure to the patient.
Pres/Vol Mon User Alarm ACGO is set to auxiliary gas Connect the patient circuit to the
Inactive outlet. auxiliary gas outlet or set the
switch to the common gas
outlet for normal operation.
Replace O2 Sensor User Alarm O2% < 5% Make sure patient receives O2. If persists, check:
Does the sensor see 21% O2 in O2 sensor cable
room air? VMB
Use different monitor. Cable to CB/J12
Calibrate O2 sensor. Control board
Replace O2 sensor.
Service Calibration User Alarm Internal calibrations are The system is operational. Service Mode:
w necessary for maximum Calibrations
accuracy.
Select Gas Outlet User Alarm Fresh gas may not flow to the Select the common gas outlet or
patient. connect the patient circuit to
ACGO is On, but flow sensors the ACGO.
have seen 3 breaths in Note: The bag arm will not
patient circuit during the ventilate a patient at the
last 30 seconds. auxiliary outlet.
Sustained Airway Error Paw > 100 cm H2O for Check tubing for kinks, If persists, check:
Pressure Minimum 10 sec. blockages, disconnects. Bellows pop-off
Shutdown Calibrate the flow sensors. Exhalation valve
Sustained Paw User Alarm Paw is greater than Check tubing for kinks,
sustained pressure limit blockages, disconnects.
for 15 seconds. Calibrate the flow sensors.
System Leak? User Alarm Leak detected between If you are using Heliox, select The primary cause for
ventilator and patient Heliox on the ventilator setup this message is
circuit. menu. Look for leaks in the that the bellows
absorber system. has emptied.
Problem with flow sensors? Refill the bellows.
Calibrate the flow sensors. This message
Drain water buildup from the combines the
breathing system and inspect Unable to Drive
for leaks (repair). Bellows and
Inspect or replace flow sensors. System Leak?
messages in the
Aestiva 7900
Ventilator.
Perform the
Breathing System
Leak Tests.
Verify Low E Limit User Alarm The audible circuit leak Set the low E alarm.
alarm is off (Alarm
Settings menu) but the
low E alarm is not
consistent with the
ventilator settings.
Vol Apnea > 2 min User Alarm No mechanical breaths or Check patient.
spontaneous breaths Bag as needed.
>5 mL in last 120 Check for disconnects.
seconds. If the patient is on a heart lung
machine, select Cardiac
Bypass on the alarm menu.
Volume Mon User Alarm A flow sensor has been The Volume Monitoring feature is Service Mode:
Disabled connected to a non- not active on this system. System
active ventilator Configurations
monitoring feature.
VT Comp Avail User Alarm A condition which prevented None. Indicates a return to
VT Compensation normal operation. Select
ventilation mode has Volume Mode or Pressure
cleared. Mode (if available).
VT Comp Off User Alarm The system supplies the set Adjust VT manually and continue
breath but cannot adjust without compensation, or
ventilation for change to the pressure mode.
compliance and In pressure mode set Pinspir.
resistance losses, etc. Replace the flow sensor module
and select the mode again.
If the problem stops, inspect the
two flow sensors.
VT Comp Disabled User Alarm A flow sensor has been The Volume Compensated Service Mode:
connected to a non- Delivery feature is not active System
active ventilator on this system. Configurations
monitoring feature.
VTE > Insp VT User Alarm Expired volume is greater Check patient condition.
than inspired volume for Are the flow sensors correctly
6 breaths with a circle installed?
module. Water build up in the flow sensor
tubes?
Is a flow sensor tube cracked or
broken?
Improper check valve operation?
Inspect one-way valves
(breathing circuit module.)
Replace flow sensor module with
the spare.
Check the condition of the flow
sensor and its tubing.
VT Delivery Too High User Alarm VT > 20% of set value for Reduce fresh gas flow.
six consecutive breaths.
Start
Turn on System
Is display
on?
Proceed
AB.43.100
Review Active Alarms, Yes No to No Display
Error Log and Alarm Log Troubleshooting
Section 5.4.2
Are
there
Diagnosis alarms?
Achieved?
Use Alarm
Done Troubleshooting
Yes Section 5.3 Yes No
No
ALARMS SYMPTOMS
No No
Alarms of Type:
Vt Compensation Off
Delivered Volume Mismatch Proceed to
Check Flow Sensors Yes Inaccurate Volume Yes
Insp Reverse Flow Ventilation Inaccurate Ventilation
Exp Reverse Flow Troubleshooting
System Leak Section 5.4.3
No No
Alarms of Type:
Low Paw Proceed to
Yes No Ventilation Yes Will not
Volume Apnea
Low Drive Gas Troubleshooting ventilate
Pressure System Section 5.4.4
Leak
No No
Proceed to
Alarms of Type: Yes High Intrinsic PEEP Yes Continuously high PEEP
Sustained Paw Troubleshooting during operation
High Paw Section 5.4.5
* Refer to Section 7.2, Breathing System Leak Tests, in the respective anesthesia machine Technical Reference Manual.
AB.43.101
Check Contrast
Adjustment User
No No Yes Menu
Is there a Yes
continuous or Problem
cycling audio Continues?
tone?
Check Display Check Contrast
No Cable to CPU Adjustment
Connections Service Menu
Yes
Problem Is LCD
Continues? Backlight lit
Replace CPU at all?
PCB
Replace Display
Yes No
Problem
Continues?
9v and 6v
present?
Replace Power
No Supply
Yes
Replace CPU
PCB
Start
Do Bit Counts on either
channel vary by more
Problem than 10 from the initial
Zero Flow Sensor Continues? zero count? Inspect for leaks
Perform a or water in
Transducers and Yes Pressure Yes
Replace both pneumatic lines
Sensitivity between flow sensor
flow sensors Calibration
(whole cartridge) No and MIA/VMB.
No
Problem
Continues? Water, leaks
Sensor Problem: or kinks?
Examine for defect or water No
plug in lines. Ensure
customer is periodically Yes No
emptying integrated circle Yes
module water trap
Inspect Breathing Switch insp. and exp.
*
AB.43.147
Circuit check Correct kinks or
leaks, replace pneumatic connections
valves: replace and repeat Pressure
seat and disk as harness if
Pressure Sensitivity necessary. Sensitivity Cal
Cal Error: necessary
Problem
moves to
Problem Replace other sensor
Continues? Harness channel?
No
Check Valve Problem:
Yes
Yes
Perform
Calibrations and No
Re-evaluate
Problem with
MIA/VMB indicated?
No Replace
Harness
Yes
Perform
Replace Calibrations and
MIA/VMB Re-evaluate
* Water in harness is indicative of a leak in the tubing, connectors, or MIA/VMB pressure transducer.
Be sure to leak check if it is determined that water is present within the harness.
7.5.4 VMB board 1. Remove the tabletop to access the VMB pneumatic circuit connections.
evaluation 2. Remove the ABS and the exhalation valve.
3. Enter the Valves-Test Tool service page and record the bit counts on the
inspiratory and expiratory flow transducers.
4. Connect the calibration orifice test tool (A) to the drive gas port (not the
pilot pressure port used for PEEP calibration).
5. Separate the Bellows Module from the Circuit Module.
A 6. Remove the Flow Sensor Module from the ABS and install it on the
machine.
7. Install the Circuit/Flow Sensor Module.
8. Connect a 22-mm hose from the calibration orifice test tool to the
inspiratory flow port (B).
9. Set the inspiratory flow valve to 60 L/min. Gas will exhaust out the rear of
the inspiratory flow sensor where it is normally connected to the circuit
module (reverse flow through the inspiratory flow sensor).
10. Record the change in bit counts observed on the inspiratory flow
transducer channel as compared to step 2 (negative polarity). There may
be some variation in the last digit of the counts, try to pick the average
value.
11. Stop the inspiratory flow.
12. Swap the inspiratory channel pneumatic connections (white to black,
black to white) Refer to Figure 11-7.
13. Repeat steps 9 through 11.
B
14. Move the two inspiratory connections to the expiratory channel of the VMB
(white from harness to blue of VMB pressure transducer, black from
harness to yellow of VMB pressure transducer).
15. Repeat steps 9 through 11 using counts from the expiratory flow
transducer channel.
16. Swap the two inspiratory connections to the expiratory channel of the VMB
(white from harness to yellow of VMB pressure transducer, black from
harness to blue of VMB pressure transducer).
17. Repeat steps 9 through 11 using counts from the expiratory flow
transducer channel.
18. Variation of greater than 40 bits in any of the four measured count
changes indicates a problem with the VMB function.
19. Return to Section 7.5.3.
No
High flow Gas
Inspiratory Flow Valve Problem exhausts from Yes
drive gas port?
1. Check electrical connections Replace Regulator
2. Attempt inspiratory flow valve and perform all
calibration No valve calibrations
3. Replace inspiratory valve if Yes
necessary and recalibrate
Problem solved?
If not replace filter
1. Turn off the flow valve
2. Turn on the PEEP Safety Valve
3. Set the PEEP valve to 100 cm H2O
4. Using hand, occlude bleed resistor Correct Hospital
on bottom of vent engine Supply Problem
* Refer to Section 7.2, Breathing System Leak Tests, in the respective anesthesia machine Technical Reference Manual.
Start
Problem
Verify pass? continues?
Zero Flow and Transducer was
airway pressure out of calibration
transducers Yes No
No Yes
Instrinsic PEEP
in both Bag and
Vent Modes?
Yes No Yes
No
Intrinsic
Verify PEEP
Regulator in Vent Scavenging Problem
calibration Mode? or Breathing Circuit Obstruction
Yes
1. Check hospitals scavenging
Problem hoses and supply vacuum (active)
continues?
No 2. Check filter on active systems
Regulator was out 3. Check for obstruction in breathing
of calibration circuit down tube or Y manifold
No
4. Check breathing circuit for
Yes incorrect assy or obstructions
AB.43.104
4. Verify proper operation of PEEP safety main manifold downstream of exhalation valve in connecting
valve of APL or in Y manifold tube or Y manifold
In this section 8.1 Before installing new software or replacing the Control Board . . . . . . . . . . . . . . . . . . . . . .8-2
8.1.1 Key/BID label (Key Code) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3
8.2 After replacing the Control Board or the Control Module . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4
8.2.1 Calibration and Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5
8.3 Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-6
To help ensure that, after repair or software replacement, the Aespire 7100 system will
include all features that are currently installed and enabled, record the current System
Configuration menu settings and the Upgrade Options installed.
The first six items are present in all machines:
Altitude: (specific to location)
Drive Gas: O2 or Air
Heliox Mode (set to Disabled for Aespire 7100)
Ve Alarm Limits: Automatic or User Adjustable
System Type: (set to Aestiva by default)
Flow Sensor Correction: Lead Filter Off or Lead Filter On
The remaining settings are only present in machines that include the optional
features:
O2 Monitoring: Enabled or Disabled
Volume Monitoring: Enabled or Disabled
Volume Compensation: Enabled or Disabled
Pressure Mode: Enabled or Disabled
Pressure Waveform: Enabled or Disabled
8.1.1 Key/BID label The replacement Control Board (Control Module) includes a Key/BID label that is
(Key Code) appropriate for machines that include all of the optional features. If the machine
includes only some of the optional features, access the Key Code Generator web site to
obtain the appropriate optional features Key Code.
1. Gather the following information (* denotes Required Information):
Requestor Information
* Email Address
* Full Name
* Organization
End User Information
Hospital Name
Address 1
Address 2
City
Postal Code
Country
Telephone
Information from the EXISTING Control Board being REMOVED
* Control Board ID number
* Control Board Key Code
Information from the REPLACEMENT Control Board being INSTALLED
* Control Board ID Number
B
Software Memory Stick, SW Revision 1.X
(for non-color display) A
Refer to Section 10.1
Software Memory Stick, SW Revision 2.X
(for color and non-color display or greater
2. Insert the Software Memory Stick (A) with contacts facing forward into the upgrade
slot (B) of the Control Module.
7. On the Upgrade Options menu (Section 4.11) of the Service Mode, enter the
options Key Code found on the back of the display to restore the original Upgrade
Options.
8. On the System Configuration menu (Section 4.8) of the Service Mode, reset the
configuration to match the settings recorded in Section 8.1
In this section 9.1 How to bleed gas pressure from the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
9.2 How to remove the rear panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
9.2.1 To remove the rear upper panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
9.2.2 To remove the lower access panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
9.3 How to remove the tabletop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-5
9.4 Servicing the pipeline inlet manifold components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6
9.4.1 Replace pipeline inlet filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6
9.4.2 Replace pipeline inlet check valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6
9.4.3 Replace the inlet manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-7
9.5 Service the cylinder supply modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-8
9.5.1 Tightening procedure for high-pressure tube fittings . . . . . . . . . . . . . . . . . . . . . . . .9-8
9.5.2 Replace primary regulator module (complete replacement) . . . . . . . . . . . . . . . . .9-8
9.5.3 Replace cylinder inlet filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-9
9.5.4 Replace cylinder check valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-9
9.5.5 Replace 3rd-gas cylinder supply module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10
9.6 Replace system switch assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
9.7 Service the flowmeter module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13
9.7.1 Remove front flowmeter panel shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13
9.7.2 Remove flowtubes for cleaning or replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13
9.7.3 Remove complete flowmeter head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-15
9.7.4 Replace flowmeter modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-16
9.7.5 Replace flowmeter frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-20
9.7.6 Replace O2 supply switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-21
9.7.7 Checkout procedure for O2 supply switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-21
9.7.8 Replace secondary regulator manifold or balance regulator manifold . . . . . . . 9-22
9.7.9 Replace O2 or N2O needle valves (on machines with N2O) . . . . . . . . . . . . . . . . . 9-23
9.7.10 Replace an Air needle valve on all machines or an O2 needle valve
on machines without N2O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-25
w Obey infection control and safety procedures. Used equipment may contain
blood and body fluids.
w When servicing the ventilator, extreme care must be taken to avoid introducing
foreign debris, particularly metal chips generated by screw threads, into the
pneumatic flow passages of the ventilator. Failure to do so can result in damage
to the flow valve and possible injury to the patient.
w Some internal parts have sharp edges and can cause cuts or abrasions. Use care
when servicing internal components.
w After repairs are completed, always perform the checkout procedure. Refer to
Section 3 of this manual.
9.2.1 To remove 1. Bleed all gas pressure from the machine (Section 9.1).
the rear upper 2. Ensure that all cylinder and pipeline gauges read zero before proceeding.
panel
3. Disconnect all electrical cables.
4. To remove the rear panel, fully loosen the three captive screws that hold the panel in
place. Remove the panel.
If the machine includes integrated suction, disconnect the two tube fittings from
the overflow safety trap manifold.
If the machine includes electrical outlets, lower the panel and place it so that it
does not stress the power cable.
9.2.2 To remove 1. Bleed all gas pressure from the machine (Section 9.1).
the lower access 2. Ensure that all cylinder and pipeline gauges read zero before proceeding.
panels
3. If present, remove the inboard cylinders.
4. Remove (two screws) the small upper access panel to access the 3rd cylinder
regulator (N2O) test port.
5. Remove (six screws) the large lower access panel to access the 3rd cylinder
regulator.
C
B
3. Install the new pipeline inlet filter in the pipeline inlet fitting. The new filter comes
with an o-ring.
5. Push the new check valve into the opening, using the same thin tool. The new check
valve includes an o-ring orient it toward the pipeline inlet. Note: Make sure to push
the new check valve all the way back into the opening until it bottoms out on the
shoulder.
3 1
2
4 5
4. Transfer the following item to the replacement manifold or install new as required.
pipeline check valve (1)
inlet filter (2)
inlet fitting (3) and o-ring (4)
relief valve (5)
5. To reassemble, perform the previous steps in reverse order.
6. Perform the checkout procedure (Section 3).
9.5.1 Tightening The cylinder pressure gauge is connected to the cylinder supply through a copper tube
procedure for with fittings at both ends. Use the following tightening procedure whenever you are
replacing a cylinder supply or a cylinder pressure gauge.
high-pressure
tube fittings 1. Insert the tubing into the fitting until the ferrule seats in the fitting.
2. Tighten the nut by hand.
3. Continue tightening the nut with a wrench until it reaches the original position (about
1/4 turn). You will feel an increase in resistance at the original position.
4. After reaching the original position, tighten the nut just slightly.
Note If you are installing a new tube that has not been tightened before, tighten the nut with
a wrench an additional 3/4 of a turn after the nut is finger tight.
9.5.2 Replace 1. Bleed all gas pressure from the machine (Section 9.1).
primary regulator 2. Ensure that all cylinder and pipeline gauges read zero before proceeding.
module (complete
3. Remove the rear panel (Section 9.2).
replacement)
4. Disconnect the high-pressure cylinder gauge fitting.
5. Disconnect the output tube fitting.
6. Remove the three mounting screws and
lockwashers.
7. To reassemble, perform the previous
steps in reverse order.
Tighten the high-pressure fitting as
detailed in Section 9.5.1
Pull on the cylinder output fitting to
ensure it is locked in place.
8. Check the output of the regulator
BEFORE you install the rear panel.
Adjust if necessary (Section 5.1).
9. Perform the checkout procedure
(Section 3).
w CAUTION Be careful not to crush the filter. Do not thread in the screw more than two full
turns.
9.5.4 Replace The cylinder check valve is not a replaceable item. If the check valve is defective, you
cylinder check must replace the complete cylinder supply module.
valve
Pressure gauge
fitting
System Switch
(electrical)
Gauge panel
O2 Out (Port 4)
Air In (Port 3)
O2 In (Port 3)
(Rear View)
9.7.1 Remove 1. Bleed all gas pressure from the machine (Section 9.1).
front flowmeter 2. Ensure that all cylinder and pipeline gauges read zero before proceeding.
panel shield
3. The flowmeter panel is held in place with two latching tabs at the right side. To
remove the panel, release each latch by pushing it toward the center of the panel
with a thin rod (3-mm hex wrench) through the access hole in the shroud.
9.7.2 Remove 1. Remove the front flowmeter panel shield (Section 9.7.1).
flowtubes for 2. To remove a flowtube assembly, push up on the tube just enough to clear the bottom
cleaning or seal, pull out from the bottom until the tube clears the flowtube module, then pull
replacement down slowly to release it from the module.
w WARNING Floats are calibrated to a specific tube. Keep each float with its tube. Replace
tube and floats together. Interchanging floats can cause incorrect readings.
Disassemble the flowtube assemblies only when service is required. Excessive
cleaning can remove the antistatic coating from inside the tube. Damage to the
float requires replacement of the entire flowtube.
3. Disassemble the flowtube assembly.
Spring
O-ring
Float Stop
Float
Filter
O-ring
4. Completely clean, rinse, and dry the flowtube. Use hospital grade alcohol and a
flowtube brush.
5. Replace stops, filter and o-rings, as necessary. Lightly coat all o-rings with Krytox. Be
careful to not get any Krytox on the bottom of small flowtube float stops.
6. Reassemble the flowtube assembly.
7. Insert the flowtube, spring side first, into the top of the module with the scale
oriented forward.
8. Push up and slide the bottom of the flowtube into place on the bottom o-ring. It may
be necessary to rotate the tube to engage the index tabs.
Note: Be sure o-rings are inserted completely into the collar.
9. Push down on the tube to seat the bottom o-ring.
10. Reinstall the front flowmeter panel shield.
11. Perform the checkout procedure (Section 3).
N2O in
O2 in
Air in
O2 supply Fresh gas out
switch (for single-tube flowhead)
Open
O2 N20 Air
O2/Air modules O2/Air flowmeter modules are connected at the bottom with a long screw (A)
and nut (B) that is recessed. To remove, retain nut while loosening screw.
B A
Note The flowmeter modules are held together at the top with a u-clip. To separate the
modules, pivot the modules (front to back) 45 degree. The u-clip will disengage and
allow the modules to separate.
The flowmeter modules are interconnected at the top by a spacer tube. The o-ring on
the spacer tube makes a leak-tight seal.
U-Clip
Single-tube flowhead The outlet fitting for a single-tube flowhead is not an integral component of the O 2
flowmeter. The outlet fitting is a separate component that includes an o-ring seal and is
held in place with two u-clips.
Small Large
U-Clip O-ring U-Clip
Remove
N2O O2
g. The O2 and N2O flowmeter modules are held together by a single screw. Remove
the screw located on the side of the O2 flowmeter module.
h. Hold the flowmeter modules with the flowtubes facing you.
i. Grasp the modules at the bottom of the regulator manifolds and push the left
module away from you until the N2O module separates from the O2 module.
j. Pull the modules sideways to separate them at the top.
Save the u-clip, spacer tube, and the o-ring for reassembly.
5. To reassemble the flowmeter modules, perform the previous steps in reverse order.
Note: The u-clips must be reinstalled with the barbed leg to the left as viewed from
the front.
U-Clip
6. Install the screw through the O2 flowmeter module to locks the O2 and N2O
flowmeter modules together.
7. Reattach the pilot tube that goes to the balance regulator.
8. Install the flowhead into the machine. Reconnect the tubing and the O 2 supply
switch harness.
9. Confirm needle valve calibration (Section 5.3).
10. Install the spacer on the N2O needle valve stem.
11. Install the chain on the O2 knob/sprocket assembly and the N2O sprocket.
12. Install the chain and sprockets on the needle valve stems as an assembly. Do not
tighten the set screws.
Sprocket/Chain
Assembly
13. Install the N2O knob. Snug one set screw to hold the knob in place.
14. Perform the link system calibration (Section 5.4).
15. Install the flowmeter panel shield.
16. Perform the checkout procedure (Section 3).
9.7.5 Replace 1. Remove the front flowmeter panel shield (Section 9.7.1).
flowmeter frame 2. Remove the complete flowmeter head (Section 9.7.3).
3. Separate the flowmeter modules as required (Section 9.7.4).
4. Remove the flowtubes (Section 9.7.2). Keep all the parts for reassembly.
5. Remove the gas identification panel by removing the two screws at the back of the
frame. Keep all the parts for reassembly.
6. Remove the flowmeter frame by loosening the four mounting screws at the back of
the regulator manifold.
Note: There is a retainer in each screw location that keeps each screw within the
manifold.
7. To reassemble, perform the previous steps in reverse order.
8. If replacing O2 or N2O frames, perform the link system calibration (Section 5.4).
9. Perform the checkout procedure (Section 3).
9.7.6 Replace O2 The O2 supply switch is located on the O2 flowmeters regulator module.
supply switch 1. Remove the upper rear panel (Section 9.2).
2. Remove the two mounting screws from the O2 supply switch.
Adjustment
screw
4-mm hex
9.7.8 Replace 1. Remove the front flowmeter panel shield (Section 9.7.1).
secondary 2. Remove the complete flowmeter head (Section 9.7.3).
regulator manifold
3. Separate the flowmeter modules (Section 9.7.4).
or balance
regulator manifold 4. Remove the flowmeter frame from the regulator manifold by removing the four
screws at the rear of the regulator manifold (no need to remove flowtubes).
5. Remove the needle valve from the regulator manifold:
a. Unscrew the complete assembly together (stop collar, needle valve).
b. Replace the o-ring if necessary.
6. Screw the needle valve into the new regulator manifold.
7. Remove the plugs and balance regulator elbow fitting (and O 2 supply switch if an O2
module) from the old regulator manifold.
8. Install the plugs and balance regulator elbow fitting (and O 2 supply switch if an O2
module) into the new regulator manifold (pull on the plugs and fittings to ensure that
they are locked into the manifold).
9. Reinstall the flowmeter frame to the regulator manifold.
10. Reinstall all the flowmeter modules to the flowmeter head.
11. Reinstall the flowmeter head (Section 9.7.4).
12. Do the necessary calibrations (Section 6).
9.7.9 Replace O2 For machines without N2O, refer to Section 9.7.10 for replacing the O2 needle valve.
or N2O needle 1. Bleed all gas pressure from the machine (Section 9.1).
valves (on 2. Ensure that all cylinder and pipeline gauges read zero before proceeding.
machines with
N2O) 3. Remove the front flowmeter panel shield (Section 9.7.1).
4. Set the O2 and N2O needle valves to their minimum position.
5. Loosen the set screws on the N2O knob, then remove the knob.
6. Loosen the set screws on the N2O sprocket and the O2 knob.
7. To remove, grasp the O2 knob/sprocket, N2O sprocket, and chain as an assembly.
Remove as an assembly.
8. Remove the spacer from the N2O needle valve spindle.
9. Loosen the set screws on the needle valve stop collar for the needle valve that is
being replaced.
10. Remove the stop collar.
11. To remove the needle valve from the flowmeter block, turn the needle valve
counterclockwise with a 16-mm wrench.
12. To install the new needle valve, turn it clockwise and tighten it with the wrench.
Note: Be sure the o-ring is properly located on the tip of the needle valve.
w WARNING The O2 and N2O needle valves are not the same. Patient injury can result if the
wrong needle valve is installed in the flowmeter block. You can identify the N2O
needle valve by a groove located just below the top brass hex.
13. Install the stop collar on the new needle valve. Do not tighten the set screws.
14. Perform the needle valve calibration (Section 5.3).
15. After calibrating the needle valve, put the spacer the N 2O needle valve spindle.
Spacer
16. Put the chain on the O2 knob/sprocket assembly and the N2O sprocket.
17. Install the chain and sprockets on the needle valve spindles as an assembly. Do not
tighten the set screws.
Sprocket/Chain
Assembly
18. Install the N2O knob. Do not tighten the set screws.
19. Perform the link system calibration (Section 5.4).
20. Install the flowmeter panel shield.
21. Perform the checkout procedure (Section 3).
9.7.10 Replace an For machines with N2O, refer to Section 9.7.9 for replacing the O2 needle valve.
Air needle valve on 1. Bleed all gas pressure from the machine (Section 9.1).
all machines or an 2. Ensure that all cylinder and pipeline gauges read zero before proceeding.
O2 needle valve on
machines without 3. Remove the front flowmeter panel shield (Section 9.7.1).
N2O 4. Loosen the set screws on the flow control knob and remove the knob.
5. Loosen the set screws on the stop collar and remove the collar.
6. If equipped, remove the maximum flow stop collar.
7. Using a 16-mm wrench, remove the needle valve by turning it counterclockwise.
8. Install the new needle valve and tighten.
Note: Be sure the o-ring is properly located on the tip of the needle valve.
9. If equipped, install the maximum flow stop collar (do not tighten).
10. Install the stop collar (do not tighten the screws).
11. Install the flow control knob on the shaft. Tighten one set screw to snug.
12. Reconnect the gas supplies.
13. Perform the flow control stop procedures explained in:
Section 5.3.1 for O2.
Section 5.3.3 for Air.
14. Install the flowmeter panel shield.
15. Perform the checkout procedure (Section 3).
Valve
Cartridge
Seal
Spring
O-ring
5. When installing a new valve cartridge assembly into the vaporizer manifold, put a
light coat of Krytox on the bottom portion of the cartridge. The bottom portion of the
cartridge is defined as the brass surface that is inserted in the lower spring. Note: Do
not apply Krytox to the valve seal.
6. Verify that the parts are free of dust and dirt.
7. To reassemble, perform the previous steps in reverse order.
8. Complete the port valve checkout procedure described below (Section 9.8.2).
9.8.2 Checkout Use the Vaporizer Manifold Valve Test Tool to perform the checkout procedure for the
procedure for manifold port valve. This tool and test procedure are intended for use only when the
valve cartridge assembly is replaced.
manifold port
valve
Note This replacement and test procedure is a service action and is not part of the
maintenance program.
1. Set the system switch to Standby.
2. After replacing the valve cartridge assembly, remove the vaporizer port o-ring.
3. Attach the valve tester to the top of the valve by sliding the bottom of the tester onto
the o-ring groove.
4. Tighten the tester screw down onto the valve until the screw bottoms out on the top
of the valve. The tester o-ring should create a seal with the top of the valve.
5. Remove the upper rear panel (Section 9.2).
6. Remove the inlet tube from the vaporizer manifold.
7. Set the SCGO Selector switch to ACGO.
8. Test the negative low-pressure leak-test device:
a. Put you hand on the inlet of the leak-test device. Push hard for a good seal.
b. Remove all air from the bulb.
c. The bulb should not inflate in less than 60 seconds.
9. Attach the negative low-pressure leak-test device to the ACGO outlet.
10.Remove all air from the bulb. The bulb should not inflate in less than 45 seconds.
11. Remove the valve tester.
12. Reassemble the inlet tube, vaporizer port o-ring, and the upper rear panel.
13. Conduct a negative low-pressure leak test on the system (Section 3.9.1).
w WARNING If the valve test tool is not removed before flowing gas through the system,
pneumatic head damage could result.
A
B
Note The valve body, o-ring, and flapper do not come out with the block. They stay intact at
the bottom of the vaporizer manifold.
6. Pull the flapper out of the valve body.
O-ring
Valve body
Flapper
Valve body
O-ring
Flapper
7. Using a hex wrench, put the wrench through one of the holes of the valve body and
pull down to remove the valve body and o-ring.
8. Verify that parts are free of dust and dirt.
9. Replace the flapper by inserting the flapper stem and gently pulling the stem until
the flapper secures to the valve body.
10. Lightly lubricate the o-ring with Krytox.
11. Place the lubricated o-ring on the valve body port at the bottom of the manifold.
12. Gently install the valve body in the manifold:
Check that the o-ring makes a good seal between the manifold and the valve
body.
Check that the flapper valve makes solid contact with the valve body.
13. Install the valve block.
14. Reconnect the tubing to the valve block. Pull on the tube to ensure that it is locked
in the fitting.
15. Install the vaporizer front panel.
16. Perform the checkout procedure (Section 3).
A B
E D
9. Install the new vaporizer manifold in reverse order. Do not fully tighten the screws
until they are all in place.
Attach the new manifold to the right-hand extrusion (E).
Attach the vertical support to the vaporizer manifold (D).
Attach the bottom of the vertical support to the flowhead bracket (C).
Attach the vertical support to the front bezel (B).
10. Tighten the mounting screws in the following order: E, D, C, B.
11. Reassemble the machine.
12. Perform the checkout procedure (Section 3).
3 2 4 1
3. Disconnect the fresh gas (2) and flush (3) tubes at the back of the switch.
4. Disconnect the wires from the ACGO mode microswitch ( 4) at the back of the selector
switch.
5. Disconnect the wires from the flush pressure switch (5) on top of the selector switch.
6. Set the ACGO selector switch to ABS.
7. Back out the selector switch mounting screws (6) until the tips are flush with the face
of the mounting casting.
8. While pushing the selector knob toward the machine and holding it steady, push the
valve body toward the knob and rotate it counterclockwise to separate the valve
body from the knob assembly.
9. Remove the knob assembly and protective shroud from the machine.
10. Remove the valve from the silicone output tubes.
Test procedure 1. Confirm that flush flow and 5 L/min fresh gas flow are diverted to the ACGO port and
the ABS in the respective knob positions.
2. Confirm that the ventilator display indicates ACGO mode when the valve is set in the
ACGO position.
3. Test the function of the flush pressure switch.
(Section 4.10.2, "Display Discrete I/O Signals")
4. Perform the low-pressure leak test (Section 3.9).
5. Perform the checkout procedure (Section 3).
Procedure Sample gas return is directed to the scavenging system as a factory default. Perform
the following to reroute the sample gas back to the breathing system.
1. Remove the tabletop.
2. Port 4 (A) of the ABS breathing system is connected to the expiratory circuit,
downstream of the expiratory check valve. As a factory default, Port 4 is plumbed
with a length of tubing that is plugged (B) at the far end.
3. Remove the plug from the tube.
4. Find the sample return line at the left-rear corner of the pan assembly. The sample
return line includes an inline connector (C) at the point where the sample line goes
down into the vent engine housing.
5. Separate the scavenging tube, removing the inline connector from the portion of the
tube that extends into the vent engine housing. Plug the open end of the scavenging
tube (D) with the plug removed above.
6. Insert the inline connector from the sample return port into the open end of the return
tube (E) to Port 4. Pull on the connector to ensure that it is securely connected.
7. Replace the tabletop.
8. Perform the checkout procedure (Section 3).
Sample Sample
Return Return
Scavenging Scavenging
Downtube Downtube
C D
AB.74.119
AB.74.118
B
E
9.13.1 Servicing Service parts for the bag support arm include the upper and lower assemblies.
the bag support To replace either assembly:
arm 1. Remove the bag support arm from the machine (Section 9.13).
2. To separate the upper assembly
from the lower assembly, use a
small (2.5-mm) pin punch from the
bottom to drive the dowel pin up and
out.
3. To assemble the bag arm, apply a
light coat of Krytox to the area of the
upper arm (A) that extends into the
lower arm (including the dowel pin
groove).
A
C C Groove
4. Insert the upper assembly into the lower assembly. Align the surface (B) of the upper
assembly with the surface (C) of the lower assembly.
5. Insert the dowel pin into the hole
(from the top side as shown). Drive
the dowel pin into the bag arm until
it is flush with the top surface.
9.13.2 Replace 1. Remove the ABS breathing system from the machine.
friction pad in 2. Using an 8-mm socket, remove the
lower bag arm nut (A), shoulder washer, and spring
assembly from the lower assembly.
3. Lift the bag support arm off of the
swivel post. Remove the old friction
pad.
A
4. Wipe any residue and friction
particles from the post.
5. Insert a new friction pad into the
base. Keep approximately B
1 mm of space between the end of
the pad and the bottom of the base.
Note: Align the friction pad gap with
the seam (B) in the base. Position
C
the retaining screw so the pin (C) at
the base is perpendicular to the
seam.
9.15.1 Front panel 1. Bleed all gas pressure from the machine (Section 9.1).
method 2. Ensure that all cylinder and pipeline gauges read zero before proceeding.
3. Remove the tabletop (Section 9.3).
4. Remove the gauge panel mounting screws and move the panel forward to access the
suction control module.
C A (suction - black)
(pilot)
B
(vacuum
white)
9.15.2 Rear panel 1. Lower the upper rear panel (Section 9.2).
method 2. Disconnect the white (A) vacuum and black (B) suction fittings from the rear panel.
Do not remove the tubing from the regulator.
3. If you are replacing a venturi drive suction control module, disconnect the tube (C)
from the pilot valve adapter.
(suction)
F B A
D (suction) (vacuum)
(vacuum)
E
4. Remove the two screws (D) that hold the suction control module to the mounting
bracket.
5. Remove the regulator assembly from the front panel.
6. Transfer the tubing to the new regulator:
Attach the vacuum source tube (white fitting) to the lower connector (E).
Attach the suction tube (black fitting) to the upper connector (F).
7. Guide the tubes into the front panel opening.
8. While holding the regulator assembly against the front panel, attach the retaining
bracket to the regulator. Tighten the screws to secure the regulator assembly.
9. If applicable, attach the control port tube to the pilot valve adapter (C).
10. Attach the vacuum and suction fitting to the rear panel manifold.
11. Replace the rear panel.
12. Perform the checkout procedure (Section 3).
3. From the topside, rotate the Bag/Vent switch cartridge counterclockwise until the
Bag/Vent switch outlet port (C) clears the bellows housing.
9.16.2 Replace To replace the latch assembly, you must disassemble the bellows base assembly to the
bellows base latch point where you can remove the guide (A) and latch assembly (B) as a unit.
assembly 1. Remove the Bag/Vent switch cartridge (Section 9.16.1).
2. Remove the two remaining screws (C) that hold the APL/BTV manifold to the bellows
base assembly. Remove the APL/BTV manifol.
3. To remove the guide/latch assembly, remove two mounting screws (D) from the
underside. Remove two additional mounting screws from the topside. Remove the
guide/latch assembly from the bellows base assembly.
4. Separate the latch assembly from the guide assembly.
5. To install the new latch assembly, put the spring (E) into place in the guide assembly
(long leg down).
6. Place the latch assembly on the guide assembly so that the latch engages the short
leg of the spring. Secure the latch assembly (F) to the guide assembly.
E F
B
C
A
D E
3. Remove the two M3 shoulder screws (C) that fasten the canister latch lever (D).
4. Remove the latch lever, the switch actuator lever (E) and the spring; discard the
spring.
5. Place the new spring on the module (as shown below). Position the switch actuator
lever over the spring. Ensure the spring hooks are fully engaged into the posts on the
manifold and the actuating lever.
6. Clean any residual Loctite debris from the M3 shoulder screws removed in Step 3.
7. Place the canister latch lever in position. Apply Loctite 242 to the threads of the two
M3 shoulder screw threads and secure the canister latch level.
8. Check the switch actuator lever to ensure free movement. If sticking is observed,
loosen the M3 shoulder screw approximately 1/8 of a turn until free movement of
the switch actuator lever is observed.
9. Install the module cover.
10.Install the EZchange module.
11. Verify that the following message appears on the screen when the absorber canister
is released.
No CO2 absorption for Aespire machines
CO2 Absorber Out of Circuit for Avance and Aisys machines
12. Perform the Preoperative Checkout Procedure
(refer to the Users Reference manual).
w CAUTION Remove the vaporizers before tipping the machine. If a vaporizer is inverted, it
must be set to 5% and purged for 30 minutes with a 5 L/min flow. The interlock
system prevents purging more than one vaporizer at a time.
2. Remove the absorber, the vaporizers, gas cylinders, drawers and all auxiliary
equipment.
w CAUTION To prevent damage, do not tip the Aespire machine more than 10 degrees from
vertical.
3. Block the opposite wheels; then, block up the machine until there is enough room to
remove the defective caster.
To block up the machine, tip and slide blocks under the caster base. Raise both
sides evenly until the unit is high enough to remove the caster.
4. The casters are threaded into the base
and held with a Loctite compound.
Remove the caster with an
appropriately sized open-end wrench.
5. If required, clean the threads of the new
caster with denatured alcohol.
6. Apply Loctite 242 to the threads of the
new caster. Install the caster securely
into place.
7. Make sure the caster turns freely.
8. Carefully lower the machine to the floor.
9. Perform the checkout procedure (Section 3).
A A A A
D B C
9.18.1 To replace 1. Using a small needle-nose pliers, disconnect the switch harness from the task-light
the task-light circuit board connector (B).
switch 2. Remove the two screws (C) that hold the switch retainer plate to the upper shelf.
3. Transfer the switch retainer plate to the new switch, counter-sunk side to the outside.
4. Mount the switch to the upper shelf.
5. Remount the task-light assembly. Ensure that the switch harness and the task-light
harness wires are positioned in their respective recesses and are not pinched under
the task-light lens.
9.19.2 Removing If equipped, remove additional equipment from the arm before removing the arm.
the display arm 1. Disconnect the cables from the display.
2. Remove the display from the display
arm.
3. Remove the cables from the cable
clamps.
4. Loosen the screws that secure the
display arm in the dovetail.
5. If required, use a rubber mallet to
tap the display arm out of the
dovetail.
9.19.4 Installing A current production long arm does not include integral cable clamps.
the long arm Refer to Section 10.34 for applicable cable guide kit. Attach the cable guide to the arm
per instructions in the kit.
1. Place the arm into the extrusion.
2. Use a rubber mallet to tap the arm
into place. Leave a 12-mm gap
between the lower edge of the arm
mounting plate and the end of the
dovetail. 12-mm
3. Tighten the mounting screws to
secure the display arm.
4. Remount the display.
5. Route the display cables neatly
through the cable guide.
6. Attach the cables to the display.
7. If required, install cable tie in the
locations shown.
Place one cable tie close to the
pivot of the arm.
Place the second cable tie near
the display as shown.
8. Ensure that the cables are secured
so that they do not interfere with the
display arm through the entire range
of motion.
A B C D
A - Serial Isolation
B - Monitoring board
C - Vent Engine
D - Power cable
The ventilator will alarm with the message Low Drive Gas Press if the selected
drive gas pressure, either O2 or Air, is lost.
1. Remove the rear panel (Section 9.2).
Note: The O2 and Air pipeline manifolds have a drive gas connection at the back. The
connection not in use is plugged.
2. Remove the plug from the new connection.
3. Disconnect the drive gas hose from the present connection.
4. Install the plug in this connection (pull on the plug to ensure that it is locked into the
fitting).
5. Reroute the drive gas hose so that it does not cause kinks in other tubing.
6. Connect the drive gas hose to the new connection (pull on the hose connector to
ensure that it is locked into the fitting).
7. Do a high-pressure leak test (Section 3.3).
8. Enter the service mode and select the correct drive gas.
9. Test the primary regulator. Verify that it functions within specifications now that it will
be supplying drive gas to the ventilator (Section 5.1).
10. Perform the checkout procedure (Section 3).
D
A
(CM)
143AB99
B
C F F F
To replace the fuses To replace the fuses (A), first remove the power cord retainer (B) and the power
and the fan filter cord (C).
To replace the filter (D), remove the filter retainer (E). If the Control Module is
mounted on an arm, remove the control panel from the arm to access the filter.
F D
G
E
(CB)
A
B
Opening the control 1. Place the control module face down on a protected surface.
module
2. Loosen the screws (C) that hold the two enclosures together (one in each corner).
3. Slightly separate the rear enclosure (A) from the front enclosure (B).
4. Swing the rear enclosure into an upright position. Lift up the edge that houses the
external connectors. Be careful not to stress the harnesses in the back.
5. Disconnect the harnesses from the back of control board (CB) to separate the two
enclosures.
Battery (D)
Ground (E)
Power supply (F)
Fan (G)
w Caution When disassembling, remove the battery connector first. When reassembling,
attach the battery connector last. Power is supplied to the control board as long
as the battery is plugged in.
Control board
w Caution The circuit boards are electrostatic sensitive. Use an anti-static workstation and
wear a wrist grounding strap when handling a circuit board.
To replace the control 1. Disconnect the remaining cables at the left edge of the control board.
board (A) Two-wire harness to speaker
(B) Ribbon cable to rotary encoder
(C) Flex cable to front panel keyboard (refer to Note)
(D) Flex cable to LCD display (refer to Note)
2. Remove the two screws (E) that hold the control board to the front enclosure.
3. Carefully lift the control board from the front enclosure. Guide the cables through the
slotted openings at the left edge of the control board.
4. Reassemble in reverse order.
5. Refer to Section 8.3 for installing software and attaching the control board
configuration label.
Note The flex cable for the LCD display and the front panel keyboard inserts into a ZIF (zero
insertion force) connector on the control board.
To release the flex cable (1), insert a thin slotted screwdriver at the base of the
connector and twist it slightly to pry up on the outer shell of the connector.
To insert the flex cable (2), hold the outer shell in the released position. Carefully
insert the cable until all the fingers are below the surface of the shell. Push the shell
to the locked position.
2 2
1 1
C A
w Caution The circuit boards are electrostatic sensitive. Use an anti-static workstation and
wear a wrist grounding strap when handling a circuit board.
To replace the Battery 1. Disconnect the battery cable (A) from the control board.
2. Remove the four screws (B) that hold the battery retainer plate.
Note: After replacement, the
battery must be charged until 3. Note the orientation of the wires that connect to the battery and how they route
Battery Status is indicated as through the retaining clamp.
Battery Charged.
Refer to Section 4.10.3. 4. Replace the battery in the same orientation noted above (wires facing inward.
To replace the Power 1. Disconnect the battery cable (A) from the control board.
Supply 2. Disconnect the power supplys output connector (C).
3. Disconnect the power supplys input connector and ground wire (D).
4. Loosen each mounting screw (four corners) until it begins to ratchet.
5. Lift out the power supply.
6. Reassemble in reverse order.
EMC Gaskets
F
AB.43.075
C D
B A
To replace the speaker Remove the two screws (A) that hold the speaker assembly (B) to the front enclosure.
To replace the rotary 1. Pull the knob (C) off the shaft of the encoder (D).
encoder 2. Remove the nut and washer that hold the encoder to the keyboard.
3. Replace the encoder switch in reverse order (note the orientation of the attached
ribbon cable).
To replace the backlight 1. Disconnect the LCD backlight cable (E) and the inverter input cable (F).
inverter 2. Remove the two screws (G) that hold the inverter board to the front enclosure.
3. Clip the tie wrap (H) to release the inverter.
4. To replace the backlight inverter, reassemble in reverse order.
Insert the tie wrap provided with the inverter into the holder before mounting the
inverter.
To replace the front 1. Remove the four screws (I) that hold the LCD assembly to the front enclosure.
enclosure Set the assembly aside.
2. Transfer the EMC gaskets (or install new) to the new enclosure.
3. Attach the LCD assembly to the new enclosure.
4. Transfer the remaining components to the new enclosure (speaker, encoder,
inverter).
5. Reassemble in reverse order.
B D
ZIF
E E
C D
G F
(CB)
A
B
Opening the control 1. Place the control module face down on a protected surface.
module
2. Loosen the screws (C) that hold the two enclosures together (one in each corner).
3. Slightly separate the rear enclosure (A) from the front enclosure (B).
4. Swing the rear enclosure into an upright position. Lift up the edge that houses the
external connectors. Be careful not to stress the harnesses in the back.
5. Disconnect the harnesses from the back of control board (CB) to separate the two
enclosures.
Battery (D)
Ground (E)
Power supply (F)
Fan (G)
w Caution When disassembling, remove the battery connector first. When reassembling,
attach the battery connector last. Power is supplied to the control board as long
as the battery is plugged in.
Control board
A
B F
C
D (CB)
E
w Caution The circuit boards are electrostatic sensitive. Use an anti-static workstation and
wear a wrist grounding strap when handling a circuit board.
To replace the control 1. Disconnect the remaining cables at the left edge of the control board (CB).
board
(A) Two-wire harness to display backlight
(B) Flex cable to LCD display
(C) Ribbon cable to rotary encoder
(D) Flex cable to front panel keyboard (refer to Note)
(E) Two-wire harness to speaker
2. Remove the two screws (F) that hold the control board to the front enclosure.
3. Carefully lift the control board from the front enclosure. Guide the cables through
the slotted openings at the left edge of the control board.
4. Reassemble in reverse order.
5. Refer to Section 8.3 for installing software and attaching the control board
configuration label.
Note The Flex cable for the front panel keyboard inserts into a ZIF (zero insertion force)
connector on the control board.
To release the flex cable (1), insert a thin slotted screwdriver at the base of the
connector and twist it slightly to pry up on the outer shell of the connector.
To insert the flex cable (2), hold the outer shell in the released position. Carefully insert
the cable until all the fingers are below the surface of the shell. Push the shell to the
locked position.
2 2
1 1
N B
CB
L PS
L
N
PI
L
Chassis
D C A
w Caution The circuit boards are electrostatic sensitive. Use an anti-static workstation and
wear a wrist grounding strap when handling a circuit board.
To replace the Battery 1. Disconnect the battery cable (A) from the control board.
2. Note the orientation of the wires that connect to the battery and how they route
Note: After replacement, the through the retaining clamp.
battery must be charged until
Battery Status is indicated as 3. Remove the batterys mounting strap (B)
Battery Charged.
Refer to Section 4.10.3. 4. Replace the battery in the same orientation noted above (wires facing inward.
To replace the Power 1. Disconnect the battery cable (A) from the control board.
Supply
2. Disconnect the power supplys output connector (C).
3. Disconnect the power supplys input connector and ground wire (D).
4. Loosen each mounting screw (four corners) until it begins to ratchet.
5. Lift out the power supply.
6. Reassemble in reverse order.
Ground Terminal Note the sequencing of ground wires and hardware when replacing any of the
harnesses.
D E
B A
To replace the speaker 1. Remove the two screws (A) that hold the speaker assembly (B) to the front
enclosure.
2. Reassemble in reverse order.
To remove the front 1. Use a 7-mm nut driver to remove the twelve nuts (C) around the periphery that hold
enclosure the front enclosure (D) and the front panel assembly (E) together.
2. Carefully lift the front enclosure from the front panel assembly. Guide the cables
through the slotted openings at the left edge of the front enclosure.
3. Reassemble in reverse order.
B E
ZIF
AB.43.075
D C
To replace the keyboard The LCD display and the rotary encoder are mounted to the keyboard assembly. To
replace the keyboard assembly you must transfer the LCD display and the rotary
encoder to the new keyboard assembly.
To replace the rotary 1. Pull the knob (D) off the shaft of the encoder.
encoder
2. Remove the nut and washer that hold the encoder to the keyboard.
3. Replace the encoder switch in reverse order. Note the orientation of the attached
ribbon cable.
To replace the LCD 1. Use a 5.5-mm nut driver to remove the four nuts (E) at each corner of the display.
display
2. Remove the display assembly from the keyboard.
3. If required, clean the keyboard window (if new, remove protective film).
4. Remove protective mask from new LCD display.
5. Transfer the spacers over the display mounting studs.
6. Mount the display to the keyboard studs.
7. Transfer the display ribbon cable (contacts facing up) to the new display
(ZIF connector; pull tabs toward cable to release).
w
Do Not
Touch
A B
w Caution Do not touch the glass portion of the backlight. Body oils or other contaminants
can decrease the life of the backlight.
1 2
8 7 6 5
9.23.1 To remove 1. Disconnect pipeline supplies; close cylinder valves; bleed off pressure.
the Vent Engine 2. Remove the ABS breathing system.
3. Remove the Exhalation valve.
4. If present, remove the scavenging downtube.
5. Loosen the five captive screws (A) that hold the Vent Engine cover to the housing.
Raise the cover to access the Vent Engine.
E
D
A E B
9.23.2 Replacing Refer to section 6 for Vent Engine components that are to be serviced under regular
Vent Engine maintenance. Most of the components on the Vent Engine can be replaced by removing
the mounting screws and reusing them to secure the replacement part.
components
F
B C E D
Inlet Filter (A) Install the filter (with the course side DOWN) into the recess in the manifold. Place the
o-ring into its groove.
Regulator (B) Also inspect the two o-rings that seal it to the manifold. Replace as necessary.
PEEP Safety Valve (C) Ensure the valve you are installing (white dot) is in this location.
PEEP Valve (D) Ensure the valve you are installing (two blue dots) is in this location.
Supply Pressure Switch Also inspect the o-ring that seal it to the manifold. Replace as necessary.
(E)
Transfer harness wire to top and middle tabs; bottom tab open.
Inspiratory Flow Valve Note orientation of the flow valve. Also inspect the two o-rings that seal it to the
(F) manifold. Replace as necessary.
Reservoir (G) Inspect the two o-rings: reservoir to manifold, reservoir to screw head.
Replace as necessary.
Interface Manifold (H) Inspect the two o-rings that seal it to the manifold. Replace as necessary.
Lubricate o-rings sparingly with Krytox.
1 2b
2 3
Not Shown
Low-pressure Leak Test Device (negative pressure) 0309-1319-800
Low-pressure Leak Test Device (positive pressure - ISO) 1001-8976-000
Low-pressure Leak Test Device (positive pressure - BSI) 1001-8975-000
Flow test device capable of measuring 015 L/min Refer to section 6.5
with an accuracy of 2% of reading
Vacuum test gauge capable of measuring 0 to 550 mm Hg Refer to section 6.6
with an accuracy of 1% of reading
Test device capable of measuring 030 L/min (see Item 1 above) Refer to section 6.6
Leakage current test device Refer to section 3.15
Test device capable of measuring 689 kPa (100 psi) Refer to section 5.1
Low-pressure test device (digital manometer or test gauge) Refer to section 5.6.2
with an accuracy of 2% of reading
Test Devices
1b 1c 1d
1a
1e 1f
(2) (2)
3
4
2
20
AB.74.016
16, 17
18, 19
11
7 12 (13)
AB.74.005
9
10 (15, 13)
2 1 14 (13)
AB.74.016
1
9
2 14
10
15
11
7 12
AB.74.005
13
16
4
6
5
16
6
3
AB.74.004
2
1 7
7 Thumbscrew 1406-3304-000
Ring, retainer 1406-3319-000
8 7
AB.97.002
4
1 1 2
11 Thumbscrew 1406-3304-000
1 2
Power Supply
4 3
4c
4b
4a
10
7 9
11 (12)
11 12 13
10
7 4
8
3
1
4 5
6
11 (12)
1 2
3
10 6
13
9 8
3
10
2 6
5
11
8 7 5
5
14 (15, 16)
17 6 (7)
13 (15, 16)
10 (9)
12 (9) 11 (9)
XXX
5 4
2
2
4 (3) 2 (3)
1 2 (3)
1 (3)
14
2 (3)
7 (8, 9)
4 (5)
3
1 4 3
1
2
1 Power Cord
Australia, 220-240 VAC AS 3112 1006-3888-000
China, 220-240 VAC AS 3112 M1053942
Danish, 220-240 VAC 1011-3696-000
EURO and France, 220 VAC CEE 7/7 1001-3380-000
India and South Africa, 220-240 VAC BS546 1006-3885-000
Japan and US, 100-120 VAC NEMA 1006-3907-000
Peru, 220-240 VAC NEMA 1006-3882-000
Swiss, 220-240 VAC SEV 1011 1006-3889-000
UK, 220-240 VAC BS1363 1006-3884-000
8
4
7
2
1
10*
6
16 11 (12,13)
3 14
15
AS 3112/GB2009
Australia/China
9 8
1
4
3
5
10
3
5
8 7
4 2
6
Item Description Pin Index (Inboard) DIN (Inboard) DIN, Large Cylinder
(Inboard)
1 Gas supply O2 1006-3201-000 1006-3207-000 1006-3880-000
1 Gas supply N2O 1006-3225-000 1006-3208-000 1006-3881-000
1 Gas supply Air 1006-3203-000 1006-3209-000 -----
Pin Index (Outboard)
2 Gas supply N2O 1009-8210-000
2e
2a 2b 2c 2d
1a 1b 1c 1d 1e
2b 2f
2h 2g
3 4
7
2
8
AA.96.287
9
10
15
11
12
14
13
15
5*
Single-tube Flowhead Outlet
4
6**
11
12
3 10 (5*)
9***
13
8
14
7
2 1
4 4
13
9 5
10 6
11 7
12 8
4
13
5
10.17.2 Secondary
regulator components
4
5
3
6 3
1 2
7
8
3
9 11 7
10
14
16
15 12
13 18
13
AB.74.050
19
17
17 (18)
14 15 16
20
13 12 10 (11)
8 7 6 1 (or 2)
13
9a
(9b)
11
6 5 7 (8)
12
9c
9
2 (3, 4)
10
5
6*
1
4
12
11
2 (3)
10
11
13
8
13 (11*, 12)
20
23 26**
6 (7, 8) 3 (4) 24 16 10 (11*, 12) 14 (15)
5
17
25
22
13
3
20 (21) 16 (17)
14
2 15
7
3
AB.82.008
4
10
18
6 (19)
11 (12)
AB.82.022
3
2 4
5
AB.82.017
AB.82.019
2 3
6
10 7
2 3a
3b
3c
3 3d
4, 5 9
6 (11)
13, 11 14
15
12
AB.82.021
8** 16
7** 10 11
11
12*
13
4
AB.82.020
3
2 5 (6)
7
1
8
10.21.7 Bellows
AB.82.018
2
5
4 6
3 2
1a
2a
3a
4 2
2b
3b 2d
2c
3
AB.82.034
3c 2e
3d
6
7
5*
8
9
3e
10 11
AB.82.055
2
20
8
18 (19) 6 (7)
9
1
17
17
15 (16)
***
14
10
11
13
13 12
10.21.11 Condenser
1 2
3 4
16
15
18
6
14
14 19
5
12 (13)
20
11
7
17
8
10 9 10
25 18
AB.82.056
24
23 21
22
19
AB.75.p80
20
26
10.22 Display cables, serial board, AGSS flowtube, and sample return
8 10
9 1
1
2
2 3
3 5
4
6
7
12 13 12 11
14
15
7
6
8
5
4 10 (11)
9
2 3
12
16
13 (14, 15)
8
12
11
8 10 9 12
1 3 4 2 5
w
Do Not Overtighten
1a 1
1b
1c
2 3 4
c e g
b
f d
1 2 3 5
4 (5)
4 7 6
7
11
13
8
4
11
10 3
11
14
13 5
ZIF
10 6
AB.43.075
12
11
2 1
9 13
7
11
8
4
9
3
10
2
ZIF
1
3 4
1 2
6 5 4 7, 8
ZIF
AB.43.075
2 1
1 Tees (tube/tube/tube)
4 mm (N2O) 1202-3653-000
6 mm (O2) 1006-3544-000
8 mm (Air) 1006-3545-000
8 mm/6 mm/8 mm (SCGO pilot) 1009-3297-000
3/16 inch (CO2 and Heliox) 0213-4727-300
2 Tees (tube/tube/standpipe)
6 mm (O2) 1006-3862-000
8 mm (Air - Drive gas) 1009-3370-000
3 Elbow (tube/standpipe)
4 mm (N2O) 1006-3533-000
6 mm (O2) 1006-3534-000
8 mm (Air) 1006-3535-000
1/4 inch (mixed gas) 1006-3737-000
1/4 inch (45 - mixed gas) 1009-3368-000
4 Elbow (tube/tube)
1/4 inch (mixed gas) 1202-3804-000
4 mm (N2O) 1009-3040-000
6 mm (O2) 1009-3041=000
5 Y
6 mm (O2) 1009-3043-000
8 mm (Air) 1009-3044-000
8 mm Y with tailpiece 1009-3360-000
1/4 inch (mixed gas) 1006-3065-000
6 Plug
4 mm (N2O) 1006-3530-000
6 mm (O2) 1006-3531-000
8 mm (Air) 1006-3532-000
3/16 inch (CO2 and Heliox) 1006-3835-000
120
From
Scavenging Downtube O2 Supply
128 127 *
8 5 **
6 130 From *
9 131
Flowhead
1 2 136
10
129
125
11
7 *
132
3 4
*
137
133
12
7
134 13
135
*
AB.74.033
125
144
145
149
Venturi Drive 150
Suction
AB.91.012
146
148
* With no N2O cylinder supply, Items 107 and 109 are replaced with Item 106.
** With an inboard N2O cylinder supply, Items 124 is replaced with Item 108.
*** With two inboard O2 cylinder supplies, Item 123 connects the second O2
cylinder supply to the first O2 cylinder supply.
105
104 110
103
O2 N2O Air
113
109 115
114
117
116
118
101
107
N2O
102
124
O2 219
100 147
111
Air 150
112
AB.74.030
126
17
6
7
O2 N2O Air
8
13
Bag/Vent
white 11 12
black 2
ABS ON white 12
black 14
Canister Release white 10 15
orange
9 12
AB.74.047
16
18
Display
14
15 16
14
17 15
18
Machine switches (1 of 3)
6
5
3
4
13
O2
12
Bag/Vent
white 10 11
black 2
ABS ON white 11
black
Canister Release white 9 11
orange
8 11
7
AB.74.069
10.31.1 Passive AGSS Items 1 through 12 are included in all AGSS kits.
1 2 3
6 (5)
7
11
4 (5)
17 15
(10, 9)
16
15 or
12 13
18 14
10.31.2 Adjustable AGSS Items 1 through 12 are included in all AGSS kits.
1 2 3
6 (5)
7
11
4 (5)
17 15 or
(10, 9)
16 12 13
18
14
10.31.3 Active AGSS Items 1 through 12 are included in all AGSS kits.
Active Low Flow with 12.7 mm hose barb connector Specific Parts
17d Connector, low flow 12.7 mm (1/2 inch) 1406-3574-000
18 -none-
1 2 3
6 (5)
7
11
4 (5)
17
(10, 9)
15
or
16 12 13
14
15, 18
8 (d)
8
(a,b,c)
2
9
17
suction
1 15
3 4 5
15
vacuum
15
suction 14
13
14 16
6 5 4 3b* 3a* 3 2 1a
*
7
8
9**
only with Venturi 10
9c
9a 9b
9 11
16
15 10
14
17
18
10.33 Drawer
3 1
2 2
5 (6)
4 (6) 6
2 3
4a
4b
4 (5) 6 (2, 3, 7)
1
2, 3
AC.09.002
AC.09.003
3
4
AC.09.004
AC.09.001
12 5
6
11
2 7
(3)
2 (3) 8 9
Figure 11-8 Schematic, AC Inlet module; 100120 V (Non-isolated outlets or no outlets) . . . . . . . . . . . 11-9
Figure 11-10 Schematic, AC Inlet module; 220240 V (Non-isolated outlets or no outlets) . . . . . . . . . . 11-11
NO
Free Breathing
Absorber
Drain
Check Valve NC
Canister
Bag
Drain
NC Button
NO
Mechanical Overpressure
Valve (110 cm H2O) Popoff Bag/Vent
Exhalation Valve
Valve (2.0 cm H2O bias)
Proportional Atmosphere
PEEP Valve Condenser
10 cm H2O
Drain
P Gauge 110 psi
Ambient Absorber
Relief
NC
Patient
O2 Cyl (opt)
P Gauge
* Drive
NO
5.4 psi
Gas Balance
Select Air (opt)
Venturi
AB.74.029
N2O Cyl (opt)
*
Exp. Flow Trans.
* = Max 3 cylinders
= Test Port Plug
Pneumatic
Engine
Board
= ABS Bulkhead Ports
Ventilator Monitoring Board
2
1
Note: Current production machines VAP VAP
4 3 do not include a secondary regulator
in the Air flowhead module.
*
Scavenging
From System *
Scavenging
From System
Scavenging
From System*
Room
High or Low Air
Filter Flow Orifice
High or Low
Flow Connector to
Needle Valve Disposal System
30 mm Male Assembly with
Connector DISS EVAC
Connector
AB.74.031
Reservoir Reservoir Reservoir
Flow Indicator
Key to Symbols
= Plugged port (1/8 inch) for sample gas return.
= Plugged port (30 mm) for auxiliary breathing system scavenging.
= Open port (30 mm) for auxiliary breathing system scavenging.
* = Zero to 10 l/min drive gas; zero to 10 l/min patient and fresh gas; zero to 20 l/min total typical flow.
Note: Active AGSS systems with a 12.7 mm connector do not include the Flow Orifice and the Flow Indicator.
Inside Machine
Power AC Inlet
Cord Surge Control Module
with
or Line Filter Universal
Circuit Breaker and Fuses
Line Filter
Inrush Power Supply
Board
Fan
Serial Isolation 5mm x 20mm +6V @ 5A Max
Outlet Isolation Connector Board T2L/250 V
Box Transformer
RS232
6V Battery
System Switch
On/Standby Software Upgrade
Module Flash ROM
O2 Supply Switch
Speaker
O2 Flush Switch
Vent Engine
Bag/Vent
Switch
ABS On
Switch
Ventilator Rotary Membrane
AB.74.046
Canister Monitoring Encoder Switches
Release Board
Switch
Expiratory
Flow Sensor Bulkhead
Connector Note: For non-color displays, the
Inspiratory backlight is powered through the control
Flow Sensor
board, as shown. For color displays, the
ACGO control module includes a separate circuit
O2 Sensor Switch board to power the backlight.
AB.74.041
27. To ACGO
28. Test port (primary regulator)
29. Test port (secondary/balance regulator)
* Approximate values 23 23
Check Valve
Figure 11-4 Pneumatic circuit diagram
Control/Display Module
Task Light
RS-232
O2 N2O Air
Bag/Vent
VEB white
black
ABS ON white
black
Canister Release white
orange
AB.74.047
VMB
AC
Inlet
Key to Symbols
VEB = Vent Engine Board
VMB = Ventilator Monitoring Board
ACGO
ACGO
ACGO = Auxiliary Common Gas Outlet
ACGO
Selector
Switch
Control/Display Module
AC
Inlet
O2
Bag/Vent
VEB white
black
ABS ON white
black
Canister Release white
orange
VMB AB.74.069
Key to Symbols
VEB = Vent Engine Board
VMB = Ventilator Monitoring Board
ACGO
ACGO = Auxiliary Common Gas Outlet
ACGO
Selector
Switch
Auxiliary O2 Flowmeter
From
AB.74.030
Scavenging Downtube O2 Supply
Vaporizer Manifold
Sample
Return
* From
Vaporizer Manifold
Flowmeter
ACGO
Vent Engine
VEB
O2 N2O Air
c
a - black
b
b - white
d c - yellow
d - blue
a
Aux O2
N2O
Ventilator
Monitoring
Board O2
See Vacuum
Note
AB.74.033
Air
ACGO
Suction
ACGO
Selector
Switch
JMPR1
AC INLET MODULE 15A
SYSTEM BREAKER 2A
FUSE LINE FILTER
1 (BRN) LINE IN LINE OUT T0
LINE
2 RV2 CR1 L L Display Module
FILTER 1.5KE250C
3 150V 250V
(ROCKER) D6521ZOV151RA20 3EHZ1 4
1500W N
AC INLET Differential 10%
IEC 320 Mode 1 G1 R1
U-5B 10 G N
250V 20%
2W
2 15%
RV1 F1
D6521ZOV141RA20 1A 2A
250VAC
140V FUSE
(BLU) NEUTRAL IN FUSE2AG NEUTRAL OUT
RV3
D6521ZOV141RA20
Common 140V
Mode 1
G2
U-5B
2 250V
15%
GND (GRN/Y) CHASSIS GROUND
CHASSIS GROUND
AB.74.036
Figure 11-8 Schematic, AC Inlet module; 100120 V (Non-isolated outlets or no outlets)
RV3
D6521ZOV141RA20
140V
Common
Mode 1
G2
U-5B
250V
2 15%
GND (GRN/YEL) CHASSIS GROUND
CHASSIS GROUND
ISOLATION TRANSFORMER
AB.74.038
VIO
BLK
THERMAL FUSE
130C RED
BRN
RED BRN
THERMAL FUSE
130C
CONNECTOR
ORN BLU
BLK
NC
WHITE
NC
JMPR1
AC INLET MODULE 8A
SYSTEM BREAKER 2A
FUSE LINE FILTER
1 (BRN) LINE IN LINE OUT T0
LINE
2 CR1 L L Display Module
FILTER RV2 1.5KE440CA
3
(ROCKER) D65ZOV271RA140 440V 3EHZ1
275V 5% N 4
AC INLET 1500W
IEC 320 Differential 1 R1
Mode G1 10
U-9B G N
470V 2W
15% 20%
2 CERAMIC
F1
RV1 1A 2A
D65ZOV271RA140 250VAC
NEUTRAL IN FUSE2AG FUSE
(BLU) 275V NEUTRAL OUT
RV3
D65ZOV271RA140
Common 275V
Mode
1 G2
U-9B
470V
2 15%
CHASSIS GROUND
AB.74.037
Figure 11-10 Schematic, AC Inlet module; 220240 V (Non-isolated outlets or no outlets)
RV3
D65ZOV271RA140
Common 275V
Mode
1 G2
U-9B
470V
2 15%
GND (GRN/Y) CHASSIS GROUND
CHASSIS GROUND
ISOLATION TRANSFORMER
AB.74.039
VIO
BLK
THERMAL FUSE
130C RED
BRN
RED BRN
THERMAL FUSE
130C
CONNECTOR
ORN BLU
BLK
NC
WHITE
NC
AB.74.062
2A FILTER 15% 20%
FUSE 1500W 275VAC
5%
AC INLET R1
RV1
IEC 320 275V 10
20%
NEUTRAL IN 2W NEUTRAL OUT
EQUIPOTENTIAL STUD
CHASSIS GROUND
M1110140
12 09 002 01 01 02
Printed in USA